SINGAPORE, April 22 (Reuters) - Biofuels refiner Ecoceres is aiming to start up its Malaysia-based biofuels production unit in the second half of 2025, a company executive said on Monday.

The unit will have a total capacity of 350,000 metric tons per year of biofuels, which consists of 220,000 tpy of sustainable aviation fuel and 130,000 tpy of hydrotreated vegetable oil, its chief commercial officer Jeremy Baines said at an Argus biofuels conference in Singapore.

Used cooking oil and palm oil mill effluent will be among the key feedstocks for the plant, located in Malaysia's Johor region, he added, without elaborating where they will source the products from.

The Bain-backed biofuels producer, which currently operates a 260,000-tpy biofuels unit in Jiangsu, China, earlier signed an agreement with a waste management firm backed by the Chinese city of Shenzhen to source for biofuel feedstocks. (Reporting by Trixie Yap; additional reporting by Chen Aizhu, Editing by Louise Heavens)