NEWS RELEASE

Mitsui Chemicals and Teijin to Market
Biomass-derived BPA and Polycarbonate Resins
Tokyo, Japan, August 9, 2022 --- Mitsui Chemicals, Inc. and Teijin Limited jointly
announced today that they will become Japan’s first companies to develop and market
biomass-derived bisphenol A (BPA) and polycarbonate (PC) resins, that will support
efforts to achieve carbon neutrality by reducing greenhouse gas (GHG) emissions
throughout product lifecycles.
The joint initiative follows Mitsui Chemicals’ receipt of ISCC PLUS certification from theInternational Sustainability and Carbon Certification (ISCC), based on which Mitsui
Chemicals will begin supplying biomass BPA produced with the mass-balance approach.
In the ISCC PLUS-certified mass-balance approach, materials are verifiably tracked
through complex value chains, as in the case of biomass-derived raw materials being
mixed with petroleum-derived raw materials to create products.
Teijin also will begin developing and producing biomass PC resin using the same BPA.
In May 2022, Mitsui Chemicals acquired ISCC PLUS certification for BPA raw material
used in PC resins. Mitsui Chemicals will now become the first Japanese company toproduce commercial biomass-derived BPA offering the same physical characteristics as
those of conventional petroleum-derived BPA.
Teijin will procure biomass-derived BPA from Mitsui Chemicals to produce biomassderived PC resins possessing the same physical characteristics as the company’s
existing petroleum-derived PC resins, which will allow these new biomass-derived
versions to be used in commercial applications such as automotive headlamps andelectronic components.
By expanding sales of products containing plastics produced through biomass
conversion, the two companies aim to develop and produce more environmentallyfriendly products throughout their supply chains. Mitsui Chemicals, for example, isconsidering expanding its procurement network for bio-based hydrocarbons in order toprovide stable supplies of related products to the market. The company, which is in theprocess of acquiring ISCC PLUS certification for biomass naphtha derivatives, hasalready received certification for phenol, acetone, BPA and alpha-methyl styrene. The
aim is to acquire ISCC PLUS certification for all of the company’s phenol-chain products
and then begin sales within fiscal 2023 ending in March 2024. Teijin also expects toacquire ISCC PLUS certification in the first half of fiscal 2023 and thereafter start
commercial production of biomass-derived PC resins. Teijin plans to emphasize tocustomers that conventional petroleum-derived PC resins can be easily replaced withbiomass-derived versions for more environmentally friendly products.

BPA facility in Mitsui Chemicals’ Osaka Works

Teijin’s polycarbonate resin

The demand to reduce GHG emissions throughout supply chains in order to support
carbon neutrality is rapidly increasing, creating needs for more low-environmental impactproducts. PC resins recycled from used final-products are applicable in automotive andelectronics uses, so the development of diverse low-environmental impact PC resins ishighly anticipated.
Since December 2021, Mitsui Chemicals has been using naphtha crackers as coreequipment in its petrochemical plants, allowing petroleum-derived naphtha to bereplaced with waste vegetable oil and residual oil-derived bio-based hydrocarbons. The
company plans to continue introducing derivatives by using the ISCC PLUS-certified
mass-balance approach to produce biomass-derived raw materials via chemical reaction.
Teijin, meanwhile, will continue developing low-environmental impact recycled PC resins,in addition to conventional PC resins using petroleum-derived raw materials, aiming tointroduce new environmentally friendly PC resins.
Reference
Mitsui Chemicals' goals for reduced environmental impact:
Mitsui Chemicals declared in November 2020 that it will endeavor to achieve carbon
neutrality by 2050. To this end, Mitsui Chemicals is pursuing a carbon neutral strategy
based on the two-pronged approach of reducing the Mitsui Chemicals Group’s Scope 1direct emissions by group businesses themselves and Scope 2 indirect emissions fromthe use of energy supplied by other companies while also maximizing the ability of theGroup’ s products to reduce greenhouse gas emissions.
Teijin's goals for reduced environmental impact:
The Teijin Group also has declared its own plan to reduce internal GHG emissions(Scope 1 and 2) to virtually zero by fiscal 2050. In the interim, the target is a 30%
reduction by fiscal 2030 compared to fiscal 2018, including by cutting emissions from
Teijin products in use by an amount greater than emissions from its total supply chain byfiscal 2030. Teijin also plans to reduce emissions from sources accounting for two-thirds

or more of total Scope 3 emissions (from purchased goods and services except tradingbusiness) by 15% as of fiscal 2030 compared to fiscal 2018.
About Mitsui Chemicals (Tokyo: 4183, ISIN: JP3888300005)
Mitsui Chemicals’ roots can be traced back to 1912 when it began producing raw material
for chemical fertilizers from coal gas by products, the first company in Japan to do so.
This undertaking significantly contributed to increasing agricultural productivity, a majorsocial issue at the time. Later, the company evolved its technology from coal chemicals
to gas chemicals, and in 1958 it built Japan’s first petrochemical complex and so provided
impetus to Japan’s industry. Today, the company boasts many world-class products withsales standing at over 1,600 billion yen and with over 160 companies in 30 countries. Its
business portfolio includes Life & Healthcare Solutions, Mobility Solutions, ICT Solutions,
Basic & Green Materials.
Mitsui Chemicals will continue to contribute to solving social challenges with its state-ofthe-art technology and by "Creating New Customer Value through Innovation".
Please visit https://www.mitsuichem.com
About the Teijin Group
Teijin (TSE: 3401) is a technology-driven global group offering advanced solutions in thefields of environmental value; safety, security and disaster mitigation; and demographic
change and increased health consciousness. Originally established as Japan's firstrayon manufacturer in 1918, Teijin has evolved into a unique enterprise encompassing
three core business domains: high-performance materials including aramid, carbon
fibers and composites, and also resin and plastic processing, films, polyester fibers andproducts converting; healthcare including pharmaceuticals and home healthcare
equipment for bone/joint, respiratory and cardiovascular/metabolic diseases, nursing
care and pre-symptomatic healthcare; and IT including B2B solutions for medical,
corporate and public systems as well as packaged software and B2C online services for
digital entertainment. Deeply committed to its stakeholders, as expressed in the brandstatement “Human Chemistry, Human Solutions,” Teijin aims to be a company thatsupports the society of the future. The group comprises some 170 companies andemploys some 20,000 people across 20 countries worldwide. Teijin posted consolidated
sales of JPY 926.1 billion (USD 7.2 billion) and total assets of JPY 1,207.6 billion (USD9.4 billion) in the fiscal year that ended on March 31, 2022.
Press Contact
Corporate Communications
Teijin Limited
pr@teijin.co.jp