South Korea’s Honam Petrochemical Corp. and Japan's Mitsubishi Chemical Corp. plan to build a polypropylene (PP) catalyst plant by the end of 2012. The plant to be built in Yeosu, will annually produce 100 tons of catalysts for the production of polypropylene (PP). The two companies will each invest 10 billion won (US$8.9 mln) to build the plant. Honam Petrochemical said the plant will strengthen its competitive edge at home and abroad. Only some global petrochemical makers, like Mitsubishi Chemical and Germany's BASF, have the technologies to produce catalysts for PP. honam Petrochemical, South Korea's top and Asia's No. 2 PP producer with an annual production capacity of 1.4 mln tons, said it will consume half of the catalysts to be produced at the plant.