Simply put, the foreign exchange quotation generally refers to the quotation of foreign trade companies on the day when SAFE applies for foreign exchange, that is, the foreign currency received at the bank is converted into RMB. This has nothing to do with the factory. Foreign trade companies should consider exchange rate fluctuations when acting as agents. The factory doesn't care about the exchange rate, as long as it can get RMB from foreign trade.
In the meantime, foreign trade companies can gain more benefits by controlling the exchange time, but this has nothing to do with the factory.