In 1928 the Shanghai Bank handled over 6 million Yuan in foreign exchange and became the number one private bank handling foreign exchange in China. The Chartered Bank of India, Australia and China became upset because of The Shanghai Bank's efforts to promote their foreign exchange business, and decided to refuse The Shanghai Bank's foreign exchange contracts. In retaliation K. P. Chen refused to accept contracts from the Chartered Bank and made this known to the Shanghai banking community through The Shanghai Bankers Association and The Shanghai Foreign Bankers Association, whom he rallied to his cause. Eventually the Chartered Bank came to cooperate with the Shanghai Bank through the mediation of a third party.