April 15 (SeeNews) - Romanian polyvinyl chloride (PVC) and polypropylene (PP) construction material maker Teraplast, whose initial public offering (IPO) on the Bucharest Stock Exchange (BVB) is underway, sees its net profit this year rising 68% to some 27 million lei ($11.8 million/7.45 million euro), the IPO's manager said on Tuesday.