China's Commerce Minister Wang Wentao assured Apple CEO Tim Cook of encouraging the company to increase investment in the country.During the meeting, they discussed Apple's growth in China, as well as broader China-U.S. economic and trade dynamics.Foreign CEOs gathered at the China Development Forum in Beijing, with some expected to meet President Xi Jinping.Apple has introduced a new capability for its USB-C AirPods Max, and is testing a blood-pressure monitoring feature for the Apple Watch.