(EnergyAsia, September 17, Monday) — China-based petrochemical maker and supplier Sinostar PEC Holdings hopes to raise S$61 million through an initial public offering (IPO) in Singapore. (US$1=S$1.52).The Shandong-based company is offering to sell 150 million new shares, including five million to the public, and 10.4 million vendor shares at S$0.38 each. The combined 160.4 million…