Annica Holdings Limited is a Singapore-based investment holding company. The Company's business segments include Engineering services, Oil and gas equipment, Biomass projects, and Investments and others. The Company has geographical presence in Singapore, Malaysia, Indonesia, Thailand and Vietnam. The Company's subsidiaries include Industrial Engineering Systems Pte. Ltd., P.J. Services Pte Ltd, Nu-Haven Incorporated, Industrial Power Technology Pte Ltd and The Think Environmental Co. Sdn. Bhd. The Company, through Industrial Engineering Systems Pte. Ltd., is a designer of industrial plant engineering services systems and general wholesaler and trader. The Company, through P.J. Services Pte Ltd, is engaged in trading in oilfield equipment and related products. The Company, through Industrial Power Technology Pte Ltd, provides engineering, procurement and construction contracting for biomass power plant.