HISTORY

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Judge Guillermo B. Guevara founded the Mabuhay Rubber Corporation, a shoe factory, in 1935. However, the production facilities were completely destroyed during the World War II forcing the company to stop operations.

Almost two decades after, Judge Guevara, with his son Victor, reorganized the company to produce two new products, caustic soda and polyvinyl chloride resin. A plant in Iligan, Mindanao, was set-up in 1965 through the Japanese Reparations Program. It engaged the technical services of Shin-Etsu Chemical Industry Co. Ltd. of Tokyo to assist its initial operation. The initial plant capacity was 4,000 MTPY for amalgam caustic soda and 6,000 MTPY for PVC resin.

In 1967, the name Mabuhay Rubber Corporation was changed to MABUHAY VINYL CORPORATION (MVC) for a closer identification with its main product, polyvinyl chloride resin. In the same year, the caustic soda plant capacity was increased by 50 percent.

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By 1973, PVC polymerization capacity doubled and in 1979, a Chlor-Alkali plant using Diaphragm Cells was put on a stream, which increased caustic capacity fourfold. A liquid chlorine plant was included in the expansion to serve new markets. Tank depot facilities in Manila, Cebu, Batangas, and Negros Oriental were put up to expand market coverage.

M/T Snoopy I, the first chemical marine tanker of MVC was launched in 1980. This specialized ship was acquired to transport another new product, hydrochloric acid.

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Storage tanks for caustic soda were erected in the North Harbor depot in 1989 to facilitate the regular importation of caustic soda in large quantities and provide storage for large inventories of caustic soda produced from Iligan to adequately serve the Luzon market.

With the entry of the Bank of the Philippine Islands in 1990, the company's financial structure was strengthened making it better prepared to face expanding markets in the 90's and beyond.

The Batangas depot was expanded in 1992 to include large tanks enough to store several months’ caustic soda requirements of Luzon customers.


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In 1993, a consortium for the construction of a Luzon PVC resin plant was formed. At the same time, the PVC plant capacity was raised to 20,000 MT per year. Also, it was in 1993 when the Mabuhay Premium Bleach Plant (MPBP) in Laguna Technopark was completed. Meanwhile, the 1,000 DMT NaOH tank situated in the Petron bulk depot in Sasa, Davao City was commissioned to serve the sodium hydroxide requirement of the area.

It was in 1996 when MVC formed the Philippine Resins Industries, Inc., a fully integrated PVC project, together with BPI, Tosoh Corporation and Mitsubishi Corporation and only two years after, the PRII operations commenced with a capacity close to 80,000 MTPY.

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MVC decided to completely move out from the polyvinyl chloride (PVC) business in 2001 to focus on its Chlor-Alkali business.

MVC's first Ion Exchange Membrane Plant in Iligan was completed in 2003 with an annual capacity of 8,000 MT of caustic soda and 22,000 MT of hydrochloric acid. Also in the same year, the M/T Snoopy II, MVC's second marine tanker for HCl was launched and the Luzon logistics operation was consolidated in Bauan, Batangas depot.

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In 2008, MVC's second IEM plant came on-stream. IEM2 uses the latest n-BiTAC electrolyzers from Chlorine Engineers Corporation of Japan. Aside from this, totally new sections were installed such as the secondary brine filtration, secondary brine purification and brine dechlorination units. The HCl Synthesis Unit and the Caustic Evaporation Plant was likewise replaced with a fully automated system using the latest instrumentation and process control.


Today, MVC operates on a modern highly efficient and environment-friendly manufacturing plant complex in Iligan City in Mindanao, supported by the MVC Premium Bleach Plant at Laguna Technopark in Biñan, Laguna. MVC has remained the biggest domestic producer and importer of caustic soda and enjoys a dominant position in the hydrochloric acid and chlorine markets.