Uh, Singapore is not China. Singapore Banks are not Chinese Banks
As to the Bank of China in Singapore, its a wholly-owned subsidiary of Bank of China, and being in Singapore, its a Singapore company. It will face the same US$ transfer sanctions to Russia as any other US or European bank - thus it will not be financing US$ trade with Russia.
“Uh, Singapore is not China.”
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Most people figure “Singapore” sounds like a Chinese word, so no difference. Plus they got that same eye thing going on, too - you can’t tell me it’s not the same thing!