Kolon Pharma plans Oct. 1 new-drug development split
Kolon Pharma will establish Tionex Bio for pharmaceutical research and development while retaining manufacturing and sales in the surviving company.

Kolon Pharma plans to spin off its new-drug development business into a separate research company on Oct. 1, retaining pharmaceutical manufacturing and sales in the existing entity.
Kolon Pharma described the move as a business restructuring that will place its existing operations and new-drug development work in distinct legal entities rather than keep both within the same company. The new entity will be Tionex Bio, while Kolon Pharma will remain the surviving company.
Kolon Pharma's main business will remain pharmaceutical manufacturing and sales. Tionex Bio's main business will be pharmaceutical research and development.
The new-drug development unit being transferred has net assets with a book value of 38.9 billion won ($27.5 million). That value applies to the operation moving to Tionex Bio rather than the manufacturing and sales business Kolon Pharma will retain.
The plan assigns a split ratio of 0.46 to Kolon Pharma and 0.54 to Tionex Bio in the planned transaction. It also includes a 54.4 percent capital reduction. Sept. 30 is the record date for allocating new shares in Tionex Bio.
A shareholder meeting is included as part of the proposed division's timetable. The business split is scheduled for Oct. 1, and registration of Tionex Bio is planned for Oct. 2.
After the split, the surviving Kolon Pharma entity, which will retain manufacturing and sales, is set to have capital of 5.59 billion won ($3.95 million). The newly established Tionex Bio entity, which will focus on pharmaceutical research and development, will have capital of 6.66 billion won ($4.7 million).
What this article is based on
Every fact in this article can be checked against the primary documents below.
- Regulatory filing코오롱제약 [기재정정]회사분할결정· DART· accessed Aug. 18, 2026
- Other분할의 사업 재편 의미· kolonpharma.co.kr· accessed Aug. 18, 2026
© New Era Korea Daily. All rights reserved.
More in Companies
- Alteogen to absorb biolabs unit in small-scale merger
- Alteogen to absorb biologics unit in all-stock merger
- HD Hyundai unit wins 338 billion won coal yard contract from Korea Midland Power
- HD Korea Shipbuilding wins 338 billion won Boryeong coal-yard contract
- EOFlow raises 500 million won as trading halt persists