Koh Brothers Eco jumps 17.5% as Catalist-listed unit Oiltek crosses S$1 billion mark

[SINGAPORE] Shares of Koh Brothers Eco Engineering (KBE) jumped as much as 17.5 per cent on Monday (Apr 20), after majority-owned Catalist-listed unit Oiltek crossed S$1 billion in market capitalisation.

The counter climbed S$0.022, rising to S$0.148 as at 9.21 am.

KBE owns 68.1 per cent of Oiltek, but is valued at just about S$355 million. Its stake in Oiltek is worth more than twice as much, excluding the S$72 million of cash KBE held as at end-2025.

Shares of top-level parent company Koh Brothers Group (KBG) were also up, climbing as much as 13.4 per cent or S$0.055 to S$0.465 at the same time.

With its recent gains, which were likely propelled by rising oil prices due to the conflict in the Middle East, Oiltek has now become the first and only Catalist-listed stock with a market cap exceeding S$1 billion. This dwarfs mainboard-listed KBG’s market cap of about S$169.1 million.

Oiltek on Apr 6 also announced plans to jointly develop a US$350 million sustainable aviation fuel biorefinery in Sabah, Malaysia, with Brunei-based renewable fuel company BioSeaga Industries.