TOKYO - Chugai Pharmaceutical Co., Ltd. (TOKYO: 4519) announced its decision today to invest in its Bio drug substance (DS) manufacturing facility 'UK3' in the Ukima Plant (Kita-ku, Tokyo) of Chugai Pharma Manufacturing Co., Ltd. (Head office: Tokyo, President: Shinya Takuma), a member of the Chugai Group.

UK3 covers DS production for phase 3 clinical trials, through to early commercial production after initial launch. This investment will expand UK3's production capacity and also contribute to realizing halogenated hydrocarbons-free, aiming to further strengthen Chugai's in-house supply foundation, which is essential for achieving the goals in the growth strategy TOP I 2030.

Chugai has its strength in its proprietary antibody engineering technologies, and thus the majority of its in-house development projects and drugs are highly difficult to manufacture because of their complex structure. In order to achieve rapid and adequate supply in-house, Chugai has been aggressively making investments to build a consistent supply platform from clinical development to early commercial production. In addition, under Chugai's growth strategy TOP I 2030, development projects and drugs coming from its research laboratories are expected to increase, which will require further increased in-house supply capacity as well as improvement in efficiency.

This investment will approximately triple the production capacity of UK3 and increase the speed and flexibility in the supply of Bio DS, by adopting innovative technologies that has advanced in recent years, contributing to faster launches of in-house products. At the same time, as an environmental measure, Chugai will upgrade various types of equipment to eliminate halogenated hydrocarbons and take steps to achieve the target of zero halogenated hydrocarbons in our Mid-Term Environmental Goals 2030. Both the enhancement of production capacity and the implementation of environmental measures are important pillars in Chugai's growth strategy. By conducting these measures at the same time, Chugai aims to shorten the period of suspension of manufacturing due to construction.

100% reduction in the use of halogenated hydrocarbons (Base year 2020)

'Chugai has set the challenging goal of 'Double R&D output' and 'Launch global in-house products every year' toward 2030. To achieve this goal, our company must build a strong supply foundation that supports the increased output generated by its proprietary drug discovery technologies from the manufacturing perspective' said Chugai's President and CEO, Dr. Osamu Okuda. 'Chugai also aims to become a global role model, and it is essential to step up environmental measures in addition to increasing production capacity. The elimination of halogenated hydrocarbons in UK3 which was planned prior to the formulation of our Mid-Term Environmental Goals 2030, will contribute to the achievement of halogenated hydrocarbons reduction targets for the Chugai Group as a whole. Through the UK3 modification, the Group will work as one to realize sustainable manufacturing facilities in terms of both environmental friendliness and ensuring supply of our products, and deliver innovative medicines to patients as quickly as possible.'

Contact:

Hideki Sato

Tel: +81-3-3273-0881

Email: pr@chugai-pharm.co.jp

Takayuki Sakurai

Tel: +81-3-3273-0554

Email: ir@chugai-pharm.co.jp

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