Chinese banks, including major ones like Bank of China and Agricultural Bank of China, are complicating transactions for Russian importers by requiring proof that goods routed through third countries will not end up in Russia. This disrupts a common payment scheme and follows US threats of secondary sanctions against entities aiding Russia in bypassing restrictions. As a result, many companies are resorting to more expensive but reliable third-country partners for payments. However, even this method faces challenges, as China's largest banks and Turkish banks are refusing to accept payments from Russian sanctioned financial organizations due to fear of secondary sanctions.