Rohan Palitha Peris

Part of Hayleys Plc, Haycarb Holdings Australia Pty Ltd. is an Australian company that supplies sustainable building materials. The company is based in Melbourne, Australia. The company was founded in 1989. The CEO is James David Naylor.

Carbokarn Co. Ltd. is a Thai company that manufactures activated carbon. The joint venture company is based in Bangkok, Thailand. and has subsidiaries in Thailand. The company was founded in 1993. The CEO is Prasarsk Karnchanabatr.

Part of Hayleys Plc, Puritas (Pvt) Ltd. is a Sri Lankan company that provides eco-friendly solutions for air and water purification through value-added activated carbon products. Founded in 1995, the company is based in Colombo, Sri Lanka. Puritas offers innovative solutions for environmental engineering and has carried out over 500 water and wastewater projects from domestic to municipal scale. The company's Oxypura Masks are activated carbon masks that act as reusable face masks providing protection against pollutants, gases, dust, and pathogens.

Founded in 2010, Ultracarb (Pvt) Ltd. is a subsidiary of Hayleys Plc. The company manufactures steam processed coconuts and is based in Colombo, Sri Lanka.