El Segundo-based NanoH2O, the venture-backed developer of reverse osmosis membranes for seawater desalination, said Sunday that it plans to build a manufacturing facility in Liyang, China. According to NanoH2O, the new facility will be its second manufacturing facility, and is in addition to its existing plant in Los Angeles. NanoH2O said the new plant will cost a total of $45M, and be operational by the end of 2014. NanoH2O said the new plant will go towards supplying its products in the Chinese market, and addressing the market in China for both desalination and wastewater treatment. NanoH2O's technology was originally spun out of UCLA. The company is backed by such investors as Oak Investment Partners and Khosla Ventures.