Singapore’s biggest banks are restricting trade financing for Russian raw materials, as the war in Ukraine spurs lenders in Asia’s largest energy and commodities trading hub to reduce exposure to the sanction-hit country.The limits include a halt on issuing so-called in US dollars for trades involving Russian commodities, including oil and liquefied natural gas, according to people familiar with the situation.DBS Group Holdings Ltd., Oversea-Chinese Banking Corp. and United Overseas Bank Ltd…
