Thread manufacturer Coats Phong Phu is set to pump $3 million into upgrading equipment and production facilities so it can bolster output by 30 per cent at its HCM City factory. The increased output will help the company, which was set up in 1989 as one of the earliest joint ventures between British firm Coats Plc and the Vietnam Textile and Garment Corporation (Vinatex) subsidiary Phong Phu Textile Co, meet growing demand for materials by export oriented footwear and garment firms.