Apple's shipments of iPhones in China slumped 9 percent in the first quarter, the only major smartphone manufacturer to see a decline in that market.
Apple CEO Tim Cook spoke with US Commerce Secretary Howard Lutnick last week about the potential impact of President Donald Trump's tariffs on iPhone prices.
Apple had chartered cargo flights to fly 600 tons of iPhones from India to the United States as a reaction to Trump's tariffs.
Xiaomi emerged as the top smartphone supplier in China, followed by Huawei, OPPO, vivo, and Apple in the fifth position.