China’s drive to buy large volumes of U.S. soybeans — a commitment under last year’s trade truce — risks being complicated by a lack of participation from the country’s private traders. While the lack of private participation in soybean purchasing doesn’t mean China can’t meet a 25-million-ton annual target outlined by the White House, it makes for a trickier task given limited storage and crushing capacity in the state supply chain, traders said. Private crushers are largely waiting and playing by ear, and soybean meal supplies could tighten up domestically in the fourth quarter if more U.S. soybean supplies aren’t readily available, said Liu Haowen, analyst with Wuchan Zhongda Futures Co. Ltd.