Marubeni Corporation, a Japanese trading house, won a$364 million order to help build a wastewater treatment system in Qatar. Marubeni will construct a pump station that sends wastewater to a plant in the northern suburbs of Doha and pipelines that deliver treated water back for irrigation, the Tokyo-based company said in a statement to the Tokyo Stock Exchange. The order was disclosed earlier in yesterday's Nikkei newspaper, the Doha-based Gulf Times reported.