Philippine Resins Industries, Inc. (PRII) was incorporated in May 1994 in response to the increasing demand for
a highly versatile thermoplastic material, polyvinyl chloride (PVC) resin. In the same month, PRII's application
to establish a PVC resin plant in Mariveles, Bataan was approved by the Board of Investments (BOI) and,
being the first of its kind in the country, was granted pioneer status. Its initial registered capacity was
70,000 TPY (tons per year).
After successfully completing test operations, commissioning and guaranteed performance runs in December 1998,
PRII started commercial operations of its 70,000 TPY suspension type PVC plant in January 1999, marking the roar
of a new tiger in the Asian petrochemical showground. With the new ownership structure -
Tosoh Corporation (TC) holding 80% of the
company equity, and Mitsubishi Corporation
(MC) 20% - PRII strives to continue producing and improving various grades of quality PVC resins; this being
matched with just-in-time delivery, reliable after-sales service, and continuous collaborative product development
efforts. As of date, the company's total plant capacity has reached 100,000 TPY, after two stages of debottlenecking
in 2001 and 2004.