F GHG Emissions Reduction Efforts Flat Panel Display Supplier Profiles Introduction


F-GHG Emissions Reduction Efforts: Flat Panel Display Supplier Profiles
Introduction
U.S. Environmental Protection Agency
Office of Air and Radiation
March 2015
Fluorinated greenhouse gases (F-GHGs) are among the most potent and persistent greenhouse gases (GHGs) contributing to global climate
change. These gases play a vital role in the manufacture of flat panel displays—most commonly liquid crystal display (LCD) panels-- that go into
televisions, computer monitors, and many other display products. The overall climate impact of the millions of display products Americans use can
be greatly reduced if suppliers of these components take steps to mitigate releases of these F-GHGs to the atmosphere.
Over the last decade, many key flat panel display manufacturers have undertaken commendable voluntary efforts to reduce their F-GHG emissions.
In the interest of encouraging further emissions reductions, the U.S. Environmental Protection Agency (EPA) is profiling efforts by flat panel display
suppliers to reduce their F-GHG emissions, consistent with its purpose of sharing industry best practices and emerging efforts to reduce corporate
GHG emissions through its Center for Corporate Climate Leadership. Additionally, in late 2013, leading electronics brands and retailers Walmart,
Dell, HP, Lenovo and Best Buy began taking steps to foster further voluntary F-GHG reductions among their LCD suppliers. Consistent with the
mission of the Center, EPA commends these companies for having submitted a proposal to their suppliers calling for them to 1) develop a
standard method for measuring and recording F-GHG emissions for the industry, 2) establish a voluntary long-term F-GHG emissions reduction
goal with public timelines for demonstrating progress, and 3) develop an annual progress report that can be shared with them and/or other
supporting organizations.
EPA assembled the information presented in each profile from publicly available sources, including suppliers' corporate sustainability reports and
their responses to the Carbon Disclosure Project's Investor or Supply Chain questionnaire, and from information provided by the suppliers
themselves or by trade associations representing the flat panel display industry. Where information on suppliers' F-GHG emissions reduction
efforts was assembled, suppliers then had the opportunity to review their draft profiles and provide feedback before profiles were completed. EPA
intends to update the following profiles from all flat panel suppliers on an as-needed basis when new information or updates to existing
information become available.
To better understand the information presented, below are some key points to consider.

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Definitions:
• Flat Panel Displays: Today flat panel displays that use F-GHGs during manufacturing are mostly liquid crystal display (LCD) panels. Some
suppliers refer specifically to LCD manufacturing when describing their efforts to reduce F-GHG use in production. For purposes of
capturing future products or other displays that may use F-GHGs in production, EPA has opted to use the broader term of 'flat panel
displays' instead of 'LCDs.' To EPA's knowledge, production of OLEDs uses F-GHGS but production of plasma displays does not use them.
• F-GHGs and PFCs: The F-GHG emissions of primary concern are from perfluorocarbons (PFCs), trifluoromethane (CHF3 or HFCs), nitrogen
trifluoride (NF3), and sulfur hexafluoride (SF6); these are sometimes collectively called perfluorocompounds (also termed PFCs). In some
publicly available information, suppliers use the term 'PFCs' instead of 'F-GHGs' to refer to all of their F-GHGs used. EPA has chosen to use
the term 'F-GHGs' instead of 'PFCs' (for perfluorocompounds) to address all known F-GHGs used in flat panel display manufacturing.
• Fab: Fabrication facility for panel production.
F-GHGs in the Context of Corporate GHG Inventories and Reporting:
Many flat panel display suppliers have implemented corporate-wide GHG emissions reduction goals and developed GHG inventories,
encompassing both Scope 1 emissions, namely those from on-site combustion and processes, and Scope 2 emissions, those from purchased
electricity and/or steam. The F-GHG emissions used in flat panel manufacturing reflect a subset of suppliers' Scope 1 emissions and are usually
referenced in terms of C02 equivalent (C02e).
Key Manufacturing Processes to Consider
Panel etching and CVD chamber cleaning are the key processes that use F-GHGs in manufacturing flat panel displays.
Fluorinated heat transfer fluids (HTFs) are often used to cool equipment, resulting in emissions due to evaporative losses. Some manufacturers
indicate that they do not use such fluorinated HTFs, or that emissions from fluorinated HTFs are minimal compared to those from etching and
chamber cleaning processes. EPA is interested in understanding the extent to which such HTFs are used, how their potential emissions compare to
those resulting from other key processes, and options for reducing F-GHG emissions from their use. EPA has also learned that N20 (not an F-GHG,
but another GHG which has a GWP of nearly 300) is also used in flat panel display manufacturing in the CVD process and in it is emitted from
onsite stationary combustion. EPA is also interested in understanding the role of N20 in flat panel display manufacturing and current and emerging
opportunities to reduce N20 emissions from manufacturing, alongside reducing F-GHG emissions.

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Reducing F-GHG Emissions
Over the last decade, electronics manufacturers have made significant progress in identifying effective technological solutions to reducing F-GHG
emissions. The following approaches to reducing F-GHG emissions from the manufacture of flat panels are in use today or are being explored:
1.	Process improvements/source reduction: Manufacturers optimize their processes to use F-GHGs more efficiently, especially in CVD clean
processes, resulting in smaller amounts of gas that are unreacted and emitted.
2.	Alternative chemicals: Manufacturers use alternative gases that are more efficient (more of the applied gas served its intended purpose
versus being left unreacted) with a lower global warming potential (GWP) to accomplish the same result. For example, many manufacturers
have modified certain key processes to use NF3 instead of SF6; NF3 is a replacement gas for in-situ use for CVD and is also used in CVD remote
plasma chamber cleaning. Though NF3 still has very high GWP of 17,200, it is lower than that of SF6 (which has a GWP of nearly 23,000) and is
used more efficiently. Some companies are piloting the use of F2 to replace NF3 in the remote plasma chamber cleaning process and are
seeking to surmount some of challenges associated with transport, storage and use of F2.
3.	Capture and beneficial reuse: Manufacturers capture F-GHGs and process them to remove impurities and refine them for reuse. Some
suppliers are evaluating the opportunities; however, reuse/recycling has so far not been implemented widely due to limitations on the
effectiveness and cost of available recycling technologies.
4.	Abatement via gas destruction technologies: Both point-of-use abatement, where the abatement system is attached to a process tool(s),
and centralized abatement systems, where gases are sent to, and destroyed in, a centralized system, are being used by major panel suppliers.
Abatement remains one of the most effective ways to reduce the majority of F-GHG emissions. There are many different types of destruction
technologies that are used to abate F-GHGs, however, most abatement systems today use combustion.
Measuring Emissions and Monitoring Abatement Systems:
Measuring the efficiency of an installed abatement system to destroy or remove gases such as F-GHGs--known as the destruction or
removal efficiency (DRE)— directly relates to how suppliers can account for their annual F-GHG emissions and subsequent reductions. Most
suppliers today use default factors from the 2006 IPCC Guidelines to account for the DRE of abatement systems. However, suppliers may
also directly measure DREs using measurement guidelines or protocols. An example of such a protocol is EPA's "Protocol for Measuring
Destruction or Removal Efficiency (DRE) of Fluorinated Greenhouse Gas Abatement Equipment in Electronics Manufacturing" (EPA's DRE
Protocol). Published in 2010 and internationally peer-reviewed, EPA's DRE Protocol provides a reliable method for measuring DRE's of

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point-of-use abatement systems for F-GHGs used during the manufacture of electronics. In other cases, for both point of use and
centralized abatement systems, suppliers may monitor their systems on an ongoing basis, especially in the case of Clean Development
Mechanism (CDM) projects, to acquire on-site real-time data. Suppliers may also test their abatement systems by monitoring specific
parameters such as temperature, process gas and exhaust gas flow rate. Going forward, EPA anticipates that this effort will enable sharing
of best practices regarding measurement and move the industry to produce reliable estimates of abatement systems' DREs.
Voluntary F-GHG reduction efforts:
Flat panel display suppliers are to be commended for undertaking F-GHG reductions voluntarily, as many companies have been implementing F-
GHG emissions reductions for over a decade. Most suppliers represented in the following profiles have been participating, through their respective
trade associations, in the World LCD Industry Cooperation Committee (WLICC), which agreed to voluntary reduction activities in 2001 -2010 that
would reduce 2000 baseline levels by approximately 90 percent down to 0.82 MMTCE. To meet the reduction goal, many suppliers in participating
countries implemented strategies to address their emissions including installing abatement technologies on production lines in their newer
generation fabs, namely those built within the last decade. As a result, F-GHG emissions were reduced by 10.1 MMTCE, to where aggregate
emissions totaled 1.75 MMTCE. Though these reductions demonstrated significant accomplishments, the WLICC fell short of its goal due to a rise
in emissions resulting from a rapid increase in production for LCD panels that were integrated into products such as televisions faster than initially
anticipated.
Since the WLICC set its goals, newer suppliers with growing market share—those who have not participated in the WLICC's F-GHG reduction
efforts to date-- have also emerged and information on their F-GHG emissions reductions efforts is currently unknown. In addition, it appears that
some key suppliers, are still in varying stages of implementing comprehensive F-GHG emission reductions efforts across their fabs. As worldwide
demand for flat panels continue to increase, F-GHG emissions are also projected to rise. To mitigate those emissions, it is important that reduction
efforts across all major panel suppliers are implemented.
Suppliers:
Currently, twelve suppliers (listed below) are the major producers of large-area flat panel displays used to make TVs and display products. The
profiles that follow highlight efforts of these suppliers to reduce their F-GHG emissions in flat panel manufacturing across key areas covering
mitigation measures and goals, the extent of their reduction efforts (whether they include all processes and gases used), the extent to which
abatement technologies are installed on newer fabs, and public disclosure of F-GHG emissions and/or emissions reductions. Profiles were only
developed for suppliers where information on their F-GHG emissions reduction efforts in flat panel manufacturing was publicly available. The
emissions data are reported in either tons or metric tons to reflect how suppliers reported on their emissions.

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AU Optronics (ALIO)
BOE Technology
CEC-Panda
ChinaStar
Chunahwa Picture Tubes (CPU
HannStar
Infovision
INX (Innolux)
LG Display
Panasonic
Samsung Display
Sharp

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Update for Calendar Year 2013
AUO (AU Optronics)
Specific F-GHG
emissions reduction
efforts and/or goals
AUO reduced F-GHGs emissions, namely NF.,, SF6 and CF4 (PFCs), by 9.34 million metric tons of CO e from
2003-2013, AUO considers itself a pioneer of F-GHG abatement in Taiwan. Since 2003, AUO voluntarily installed
IPCC-recognized F-GHG abatement devices with destruction removal efficiencies (DRE) over 90 percent in dry
etching and chemical vapor deposition (CVD) processes for all newly built fabs to reduce F-GHG emissions from
gases such as SF6 and NF3. Over the past two years, AUO also installed local scrubbers to remove F-GHG emissions
at older fabs built before 2003. Currently the installation rate of F-GHG abatement equipment at older, lower-generation
fabs, is approaching 100 percent.
PFCs Scrubbing Process

Inside clean room

::
>
—H
Process equipment A
M
Exhaust processing

Process equipment B

Exhaust processing
equipmen 2

Process equipment C
Exhaust processing
equipmen 3
Process equipment D
¦J
Exhaust processing
equipmen 4
Wet Scrubber
Sources:
AUO 2013 Corporate Social Responsibility Report (Section 4.2.1, page 61)
http://www.auo. com/upload/download/1/A UO_ 2013_CSR_EN_ All.pdf
AUO's responses to the 2014 Carbon Disclosure Project Investor Questionnaire.
F-GHG emissions
reduction efforts/goals
target the following key
processes that emit
F-GHGs
Etch and clean processes.
On fluorinated heat transfer fluids (HTFs): AUO follows the "Guidance for Greenhouse Gas Accounting and
Reporting forGHG inventory" published by the Taiwanese EPA. in the guidance, HTFs are listed as emission
sources for semiconductor industry, but not for optoelectronics industry, meaning that emissions from HTFs
are too minor in AUO's process.
Sources:
AUO
TTLA presentation at APEC meeting, August 2012, Taiwan.
VJ I
]> AUO (AU Optronics) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.

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r
+ F-GHG emissions

reduction efforts/goals

target the following

F-GHGs emitted

Participation in national

and/or international

mandatory and/

or voluntary efforts

to reduce F-GHG

emissions from

flat panel display

manufacturing
S
0

SFr, PFCs, HFCs, nf„.
6' ' '3
Source:
AUO's responses to the 2014 Carbon Disclosure Project Investor Questionnaire.
AUO is a member of the Taiwanese TFT-LCD Association (TTLA). TTLA participates on behalf of Taiwan's LCD suppliers
in the World Display device Industry Cooperation Committee (WDICC), an international industry initiative that previously
set goals to reduce F-GHG emissions (formerly the World LCD Industry Cooperation Committee).
In 2004, TTLA and Taiwan's Environmental Protection Agency signed an MOU where TTLA agreed to choose 2002
as the base year for reducing F-GHG emissions and to reduce F-GHGs emissions intensity to 0.0335 tons of COze/m2 of
glass substrate area by 2010 (this target is TTLA's collective goal and does not necessarily reflect each
individual supplier's goal).
The TTLA and Taiwan's Industrial Development Bureau, Ministry of Economic Affairs signed a "Voluntary GHG
Reduction Agreement," for 2011-2015, which aims to achieve additional GHG reductions by 12 million metric tons of COze
within 5 years. In Taiwan, F-GHG emission reductions by flat panel display manufacturers are still voluntary. However,
as of 2012, Taiwan's EPA listed PFCs, HFCs, and SF6 (including non-F-GHGs COz, CH4, and NzO) as air pollutants and
has indicated that it will implement emissions control measures under the Air Pollution Control Act in the future. Taiwan's
government has launched the Principles for Promoting Greenhouse Gas Early Action and Offset Program to encourage
carbon reduction. AUO has engaged in developing the SF6 abatement verification methodology for LCD industries, and
received 9.11 million tons of tradable carbon credits base on the amount of
PFCs reduced in the past. No trading occurred in 2013.
Sources:
AUO's responses to the 2014 Carbon Disclosure Project Investor Questionnaire.
"SFe Abatement Strategy in Taiwan." Presentation by Taiwan's Industrial Technology Research Institute (ITRI)
(www.epa.gov/electricpower-sf6/documents/conf04_lu.pdf)
TTLA
^ AUO (AU Optronics) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.

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AUO set an intensity goal to reduce its Scope 1 and Scope 2 GHG emissions in all its fabs worldwide by 25 percent
from 2010 to 2015, where its most recent base year GHG emissions, based on the 2010 national electricity emission
factor, were reported as 69 kg COze/m2. AUO updates its GHG inventory based on the latest national electricity factors
published by the Bureau of Energy.
AUO's "Green Solutions" initiative addresses emissions reductions from all of its manufacturing and other operations, from
within its supply chain, and via improved product design to create lower-carbon products. In 2011, AUO initiated a carbon
footprint management system to assist its global customers in calculating the carbon footprint of individual products as
they seek PAS 2050 third party verification.
AUO also participated in the Product Attribute to Impact Algorithm (PAIA) Project to develop calculation models for LCD-
related products.
Sources:
AUO's responses to the 2014 Carbon Disclosure Project Investor Questionnaire.
Process optimization
AUO's process experts worked with its SF6 supplier to investigate ways to reduce the quantity of SF6 used in dry etching
manufacturing processes for manufacture of its TFT-LCD panels. AUO found that by adjusting process parameters, SF6
consumption could be considerably reduced. For example, at its G6 fab in Taichung, Taiwan, if the
fab is in full production capacity, by adjusting relevant process parameters, the amount of SF6 gas can be reduced by 720
kgs per year, equal to reducing 32,000 metric tons of COz emissions annually. AUO plans to expand this SF6 reduction
scheme across all its fabs, including those located in other regions. In addition, AUO installed flow meters and mass flow
controllers at the front of reaction chambers, enabling on-site engineers to reduce unnecessary gas waste in chambers,
and improve gas utilization efficiencies.
Source:
AUO 2011 Corporate Social Responsibility Report.
Use of alternatives
Though it is more expensive, AUO uses NF3, which has a lower global warming potential, instead of SF6 in clean
vapor deposition (CVD) chambers. AUO also started using NF3 when fabs were newly built. AUO continues to
research the possibilities of using alternative gases with lower or no GWP in conjunction with optimizing process
efficiencies and implementing abatement systems.
Source: AUO
^ AUO (AU Optronics) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.

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Capture and recycling
In 2012, AUO tested gas recycling technologies and recycling efficiency at one fab, where the utilization efficiency of the^\
recycling system was measured directly by monitoring the recycled gas flow. In 2013, AUO's Longtan site introduced a
membrane separation method, previously approved by the IPCC, which purifies SF6 so that it can be
re-used in the manufacturing process. This recycling technology reduced F-GHG emissions and saved on operating and
material costs. However, due to a higher maintenance demand and lower efficiency in general, the recycling system has
been replaced by the abatement system.
Sources:
AUO
AUO 2013 Corporate Social Responsibility Report (Section 4.2.1, page 61)
http://www.auo. com/upload/download/1/AUO_ 2013_ CSR_EN_All.pdf
to
+*
£

AUO's responses to the 2014 Carbon Disclosure Project Investor Questionnaire.
111
c
Abatement
0
+*
0
3
¦c
0
tc
+ Full or partial installation
of abatement systems
across all new
generation fabs
AUO has installed abatement systems in all newer generation fabs. CVD processes in all fabs are equipped with
abatement systems. For dry etching processes, abatement systems have been gradually installed since 2003 on
new production lines. Types of abatement technologies being employed include combustion (for CVD, dry etching) and
membrane separation technology (for dry etching and is regarded as a recycling technology). AUO uses localized,
point of use (POU) abatement systems.
o
X
0
1
IL

Sources:
AUO
Taiwan Environmental Protection Administration. "The Initiative and Efforts from Electronic Corporations in
Taiwan- Semiconductor and TFT-LCD."
http.V/unfccc. epa.gov.tw/unfccc/english/_ uploads/downloads/05_ The_ lnitiative_ and_ Efforts_form_ Electronic_
Industry _ in_ Taiwan, pdf
TTLA presentation at APEC meeting, August 2012, Taiwan.

AUO's responses to the 2014 Carbon Disclosure Project Investor Questionnaire.
J
^ AUO (All Optronics) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.

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+ Ensured that abatement
systems are installed,
operated, and
maintained according
to manufacturer
specifications
For abatement systems, the destruction or removal efficiency was checked once first installed.
Source: AUO
to
+*
j2
+ Indicate whether
default factors or actual
measurements were
used to estimate the
DRE
Default factors used.
AUO applies the 90 percent default DRE value for SF6, HFCs and PFCs abatement technologies and the 95
percent default DRE value for NF3 abatement technologies, taken from the 2006 IPCC Tier 2b Guidelines for National
Greenhouse Gas Inventories for electronics industry emissions.
iii

Source: AUO
£
0
+*
0
3
¦o
0
tc
o
X
Reported destruction
or removal efficiency
(DRE)

0
1
IL
+ Practices for monitoring
abatement systems
When abatement systems were first installed, AUO randomly selected devices from each machine type per site,
and measured their utilization efficiencies and DRE using Fourier Transform Infra Red (FTIR). To ensure the
effectiveness of the CVD and dry etching abatement systems, both systems were measured even if they were located
in the same site. The outcomes of the FTIR measurements were verified by a third party, the Industrial Technology
Research Institute of Taiwan (ITRI). However, due to the high cost of FTIR testing, AUO uses an operation recipe
instead as a method to monitor abatement devices after installation. Engineers check and
record the operation recipe. Parameters include temperature, process gas, and exhaust gas flow rate. By types
of devices, different parameters are monitored. For most devices, AUO found that air fuel ratio is a key indicator
to determine if more fuel is needed. If the abatement system does not have a thermometer, then the volume of
gas flow will become an important indicator.

Sources:
AUO's responses to the 2014 Carbon Disclosure Project Investor Questionnaire (see section ICT3.6)
J
^ AUO (AU Optronics) Display Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.

-------
Total annual F-GHG
emissions in C02e,
emitted across all
flat panel display
manufacturing fabs
(2014)
01
*»
c
o
E
2
3
(A
<5
O
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C
o
'35
-------
r
Total annual F-GHG

PFCs Emissions Reduction Performance
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
a
c
2 -0.50
-1.00
-1.28
-1.35
1.50
Sources:
AUO 2013 Corporate Social Responsibility Report
http://www.auo.eom/upioad/download/1/AUO_2013_CSR_EN_Ail.pdf
AUO's responses to the 2014 Carbon Disclosure Project Investor Questionnaire (see page 8 of 35).
^ AUO (AU Optronics) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.
12
-------
Methodology used to
estimate F-GHG
emissions
Third party assurance
for F-GHG emissions
estimates
01
*»
c
o
£
2
3
(A
<5
O
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£
o
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(Li
o
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AUO estimates its F-GHG emissions based on the Tier 2b method provided by the 2006 IPCC Guidelines for National
Greenhouse Gas Inventories for electronics industry emissions. AUO's raw data is verified by a third party each year.
The page below is part of AUO's "Verification Statement of Greenhouse Gas Assertions" for 2013.
Source: AUO
AUO's raw data is verified by a third party each year. The pages below are part of AUO's "Verification Statement of
Greenhouse Gas Assertions" for 2013.

VERIFICATION STATEMENT OF GREENHOUSE GAS ASSERTIONS
Siaietneni No. 00043-2014-AG-TWN
Page ! of 3
AU Optronics Corporation
initiate reporting of
Greenhouse Gas Inventory
Management Report (2013)
Scope of Verification
DNV Business Assurance (DNV) has been commissioned by A U OPTRONICS
CORPORATION to perform a verification of the greenhouse gas assertion of AU
OPTRONICS CORPORATION Greenhouse Gas Inventory Management Report, (2013)
(hereafter the "Inventory Report") with respect to the following area:
AUHC L5A: No. 5. U-Hsin Rd. 6. Hsinchu Science Park. Hsinchu 5007tt, Taiwan. R.O.C.
AL'HC L3C: No. 23. Li-Hsin Rd., llsinchu Science Park. Hsinchu 30078, Taiwan. R.O.C.
AULTL4A/ LSA/LSB/CSA/M0I: No. I. Xinhe Rd.. Aspire Park, Lungtan. Taoyuan 32543.
Taiwan. R.O.C.
AULK L6B/ M02/C6B: No. 228, LungkeSt., Lungtan, Taoyuan 32542, Taiwan. R.O.C.
AUHYL3D/LSD: No. 189, Hwava Rd. 2. Kueishan. Taoyuan 33383, Taiwan. R.O.C.
AUHL L8B/C8B: No.], Mathung Rd., HouliDist. Taichung City 42147, Taiwan, R.O.C.
AUCZPII: Turanka 856/ 98b, Slatitw, 627 00 Brno, Czech Republic
AUSTL4B:No. 10, Tampines Industrial Avenue 3. Singapore 528798
AUSK El I/El 2: 811 06 Bratislava. Slovak Republic
AUJP: Riso Shin-Osaka Bid. 5F 4-3-7 Miyahara. Yodogawa-ku.Osaka-city. Osaka. 532-0003,
AUKR: 3F. MJL B/D, 204-5. Nonflyeon-ldong. GangNam-Gu. Seoul, Koiva
AUUS: 9720 Cypresswood Drive, Suite 241. Houston, TX 77070, USA
AUNL: Zekeringstraat 39, 1014 BVAmsterdam, The Netherlands
Mj«ami»anaW'W«ais). 220 Ktsisxit^ 2 a 293 29 ib tel- -ess* 2 82537800

Verification Statement of Greenhouse Gas Assertions
Statement No. 00043-2014-AG-TWN
Page 2 of3
Verification Criteria and GHG Programme
The verification was performed on the basis of ISO 14064-1:2006 and CNS 14064-1:2006 as
well as criteria given, to provide for consistent GHG emission identification, calculation,
monitoring and reporting.
Verification Statement
It is DNVi opinion that with reasonable assurance the greenhouse gas assertion of the
Inventory Report of 27 Feb. 2014 is free fmm material discrepancies in accordance with the
verification criteria identified as stated above.
David Hsieh
District Manager
DNV Business Assurance T
J&5J. JWt'Ti 220 BifSSift-jS 2 ® 293 W 291® TEL.- f t

Source: AUO
^ AUO (AU Optronics) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.
-------
for Calendar Year 2013 f
Chunghwa Picture Tubes (CPT)
Specific F-GHG
emissions reduction
efforts and/or goals

-------
Participation in national
and/or international
mandatory and/
or voluntary efforts
to reduce F-GHG
emissions from
flat panel display
manufacturing
CPT is a member of the Taiwan TFT-LCD Association (TTLA). TTLA participates on behalf of Taiwan's LCD
suppliers in the World Display device Industry Cooperation Committee (WDICC), an international industry initiative that
previously set goals to reduce F-GHG emissions (formerly the World LCD Industry Cooperation Committee).
In 2004, TTLA and Taiwan's Environmental Protection Administration signed an MOU where TTLA agreed to
choose 2002 as the base year for reducing F-GHG emissions and to reduce F-GHGs emissions intensity to 0.0335
tons of COze/m2 of glass substrate area by 2010 (this target is TTLA's collective goal and does not necessarily
reflect each individual supplier's goal).
Recently, the TTLA and Taiwan's Industrial Development Bureau, Ministry of Economic Affairs signed a "Voluntary GHG
Reduction Agreement" for 2011-2015, which aims to achieve additional GHG reductions by 12 million metric
tons of COze within 5 years. In Taiwan, F-GHG emission reductions by flat panel display manufacturers are still voluntary.
However, as of 2012, Taiwan's EPA listed PFCs, HFCs, and SF6 (including non-F-GHGs COz, CH4, and
NzO) as air pollutants and has indicated that it will implement emissions control measures under the Air Pollution Control
Act in the future.
According to CPT's website, TTLA signed its first cooperative memorandum for voluntary reductions with the
Environmental Protection Administration in 2004. In 2007, it signed the "Voluntary Greenhouse Gas Reduction
Agreement" with the Ministry of Economic Affairs. CPT will also work with TTLA to provide regular emissions information
on fluorinated compounds, and engage in reductions of fluorinated compounds. Its management
procedures include:
1. Reconstruction of the chemical vapor deposition (CVD) process in the Taoyuan and Longtan plants, now
completed. This has reduced emissions of carbon dioxide.
2. Processes for end gases from machines, including increasing the production usage rate and adding local
scrubbers (LS).
Sources:
CPT Website: Environmental Management
(www.cptt.com.tw/index. php?option=com_content&task=view&id=447<emid=180)
"SFe Abatement Strategy in Taiwan." Presentation by Taiwan's Industrial Technology Research Institute (ITRI), 2004.
(www.epa.gov/electricpower-sf6/documents/conf04_lu.pdf).
TTLA
Chunghwa Picture Tubes (CPT) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.
-------
Corporate-wide GHG
emissions reduction
goals and reduction
initiatives
Currently, CPT's goal is to reduce GHG emissions by 280,000 tons of COze by 2016 through process optimization
and adoption of dry etch machinery and tail gas incinerator facilities.
Source:
CPT 2013 Corporate Social Responsibility Report (page 30).
Process optimization
According to CPT, "Reconstruction of the chemical vapor deposition (CVD) process in the Taoyuan and Longtan
plants have been completed, which results in a 38 percent emission reduction of fluorinated compounds from 2010 levels,
equal to approximately 170,000 tons of carbon dioxide... Emissions produced by manufacturing processes
that use fluorocarbons (FCs), is a major source of greenhouse gas emission during the production process of thin
membrane liquid crystal display devices. Currently, processes for end gases from machines include increasing
production usage rate and adding local scrubbers (LS)."
Source:
CPT Website: Environmental Management (http://www.cptt.com.tw/index.php?option=com_content&task=view&id=447&
ltemid=180)
Use of alternatives
CPT is using lower GWP gases, where possible. Additional details not available.
Sources:
CPT
TTLA presentation at APEC meeting, August 2012, Taiwan.
Capture and recycling
Information not available.
^ Chunghwa Picture Tubes (CPT) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.
16
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Abatement
+ Full or partial installation
of abatement systems
across all new
generation fabs
CPT has installed abatement systems in all newer generation fabs. CPT committed to install abatement systems in
all fabs established after 2003 to reduce more than 90 percent of its F-GHG emissions.
According to CPT, its "Taoyuan and Lungtan plants' TFT manufacturing process involve membrane molding and
dry etching procedures that use SF6 and NF3 gases for the manufacturing process. Therefore, fluoride gases that
have not reacted completely would be emitted from the end gas emissions. Because SF6 and NF3 are greenhouse gases
with high global warming potential (GWP), CPT uses high temperature burning to break down the gases' molecules,
augmented by particle accumulation filter bags to capture the secondary solid pollutant that results
from the burning process - silicon dioxide. Lastly, the cleaning tower is used to clean out special gas molecules in
the waste gas. Currently, efficiency is at 90 percent or above."
Sources:
CPT Website: Environmental Management
(www.cptt.com.tw/index. php?option=com_content&task=view&id=447<emid=180)
CPT's responses to the 2009 Carbon Disclosure Project Supply Chain Questionnaire.
Taiwan Environmental Protection Administration. "The Initiative and Efforts from Electronic Corporations in Taiwan-
Semiconductor and TFT-LCD."
(http.Y/unfccc. epa. gov tw/unfccc/english/_ uploads/downloads/05_ The_ lnitiative_ and_ Efforts_ form_ Electronic_ Industry_
in_Taiwan.pdf)
TTLA presentation at APEC meeting, August 2012, Taiwan.
+ Ensured that abatement
systems are installed,
operated, and
maintained
according to
manufacturer
specifications
Upon installation at the facility and before CPT begins operating the abatement system, the abatement equipment
manufacturer verifies that the system can meet the default DRE.
Sources:
CPT
TTLA
Chunghwa Picture Tubes (CPT) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.
-------
Indicate whether
default factors or actual
measurements were
used to estimate the
DRE
Reported destruction or
removal efficiency (DRE)
Default factors used.
CPT applies the 90 percent default DRE value for SF6, HFCs and PFCs abatement technologies and the 95 percent
default DRE value for NF3 abatement technologies, taken from the 2006 IPCC Tier 2b Guidelines for National
Greenhouse Gas Inventories for electronics industry emissions.
CPT reports the DRE of its abatement systems at 90 percent or higher.
Sources:
CPT
+ Practices for monitoring
abatement systems
Information not available.
Total annual F-GHG
emissions in C02e,
emitted
across all flat panel
display manufacturing
fabs (2013)
In 2008, its base year, CPT's F-GHG emissions amounted to 505,000 tons of COze. In 2013 emissions equaled
483,000 tons of COze, a decrease from base year emissions, but an increase over F-GHG emissions in 2012. CPT
attributes the increase to improved production capacities that led to higher F-GHG consumption and process yield issues
required a switch back to SF6 from NF3 for certain machinery (SF6 has a higher global warming potential).
In 2012, CPT's F-GHG emissions accounted for 30.17 percent of the company's total GHG emissions. In 2011, CPT's
F-GHG emissions accounted for 24 percent of the company's total GHG emissions*
Important: The emissions cannot be compared to the emissions from other suppliers because they may use different
estimation methods and monitoring practices to calculate their emissions. These process emissions may also reflect
manufacturing processes that create additional products other than large-area flat panel displays.
Source:
CPT 2013 Corporate Social Responsibility Report (page 30)
Information available on CPT's website in prior years.
^ Chunghwa Picture Tubes (CPT) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015. ^
-------
Total annual F-GHG
emissions reductions
and/or rate of emissions
reductions
CPT estimates reducing F-GHG emissions by approximately 23.8 miilion tons of CO,e between 2002 and 2012.
CRT estimates reducing F-GHG emissions by approximately 21.8 million tons of COze between 2002 and 2011.
Source:
CPT Website: Environmental Management
(wvm.cptt,com,tw/index.php?option=com_content&task=view&id=447<emid=180)
Methodology used
to estimate F-GHG
emissions
Third party assurance
for F-GHG emissions
estimates
CPT estimates its F-GHG emissions based on the Tier 2b method provided by the 2006 IPCC Guidelines for National
Greenhouse Gas Inventories for electronics industry emissions.
Source:
CPT
CPT's annual total GHG inventory undergoes third party verification.
Source:
CPT Website: Environmental Management
(www.cptt.com.tw/index. php?option=com_content&task=view&id=447<emid=180)
[233
Verification Statement of Greenhouse Gas Assertions
SiHiHiKiil No. 000(i9-2014-Afi-TWN
Page I of2
CI1UNGIIWA PICTURE TUBES LTD.
initiate reporting of
Greenhouse Gas Inventory
Management Report (2013)
Scope of Verification
OAW Business Assurance (UNV) has been commissioned by CHUNGHWA PICTURE, TUBUS
LTD. to perform a verification of the greenhouse gas assertion of CHUNGHWA PICTURE
TUBES LTD. Greenhouse Gas Inventory Management Report, GHG Report (201S), Mar. 20.
2014 (hereafter the Inventory Report") in Taiwan. ROC with respect to the following area:
Taoyuan: No 1127, Hopiri Rd., Padeh, Taoyuan. Taiwan, R O C
Lungtan: No. 1, Huaying Rd., Lungtan Shiang, Taoyuan, Taiwan, R.O.C.
Yangmei: No. 80. Hsigshan Rd.. Yangmei, iaoyuan, laiwan, R.O.C.
Wujiang(CPTW) :No. 88 Jiang Xing East RD., Wujiang Economic Technology Development
Zonejiangsu Province,China, P R C.
FuJIan ( FDT) : No. 6 Rujiang West Road,Mawei Hi-tech Development Zone, Fuzhou,China,
PRC.
CPTF: No. 1 Xing Ye Road Mawei Hi-tech Development Zone, ruzhou.China. P.R.C.
HOF: No. 1 Xing Ye Road Mawei Hi-tech Development Zone. Fuzhou,China, P.R.C.
FVD: No. 1 Xing Ye Road Mawei Hi-tech Development Zone, Fuzhou,China, P.R.C.
CTOC: Shangzheng.Yuanhong Road.Fuqing City, Fujian Province,China, P.R.C.
Verification Criteria and GUG Programme
The verification was performed on the basis of ISO 14064-1:2006 and CNS 14064-1:2006 as
monitoring and reporting.
Verification Statement
Inventory Report of Mar. 20, 2014 is free from material discrepancies in accordance with
ISO 14064-1:2006 and CNS 14064-1:2006. DNV thus requests the registration of the
Inventory Repot t as a GlfG inventory demonstration project
^5,-jVWjp (fyJiM

^ Chunghwa Picture Tubes (CPT) Display
Information assembled by the U.S Environmental Protection Agency's Office of Air and Radiation.
Current as of March 2015.
19
-------
Update for Calendar Year 2013
HannStar