Tokyo Ohka Kogyo

Activity by year

202420252026

ExpansionNew facility

Aug 6, 2025NEW FACILITYPyeongtaek, Gyeonggi Province, South Korea$84.0Mops Q3 2027
TOK to build new Pyeongtaek plant in South Korea
TOKYO OHKA KOGYO CO., LTD. has decided to construct a new Pyeongtaek Plant in its consolidated subsidiary TOK Advanced Materials Co., Ltd. in Pyeongtaek, Gyeonggi Province, South Korea. The Phase 1 construction includes a high-purity chemical manufacturing building with an investment of approximately 12.0 billion yen.
Tokyo Ohka Kogyo TOK Advanced Materials #Semiconductors and Industrial Electronics tok.co.jp
Jun 18, 2024EXPANSIONKikuchi City, Kumamoto Prefecture, Japan$83.0Mops Q1 2025
TOK completes new high-purity chemicals plant in Kumamoto, Japan
Tokyo Ohka Kogyo (TOK) completed construction of a new plant at the Aso Kumamoto Site in Kikuchi City, Kumamoto Prefecture, investing ¥13 billion. The facility will produce high-purity chemicals for semiconductors and commence operations in the first half of 2025.
Tokyo Ohka Kogyo #Semiconductors and Industrial Electronics #Specialty Chemicals aei.dempa.net

Site	Largest	Latest
Pyeongtaek, South Korea	$84.0M	2025-08-06
Kikuchi City, Japan	$83.0M	2024-06-18

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