During a conference in Japan about the investment climate in Korea, which was organized by the Korean Ministry of Commerce, Industry and Energy, it was announced that 15 Japanese companies have invested a total of US$190 million in Korea in 2005. The ministry said that this figure represented 2% of the total overseas investments by Japanese companies. It forecasts that this number will grow to 6% in 2007. Of the US$190 million invested in 2005, Central Glass was responsible for US$63 million, which it invested in a joint-venture producing PDP (Plasma Display Panel) glass substrates. Toyo Gosei invested US$20 million in a factory which recycles semiconductor-grade solvents.