China will resolutely oppose and contain Taiwan independence, Premier Li Keqiang said in remarks prepared for delivery at the opening of the annual meeting of its rubber-stamp parliament on Sunday, amid heightened tension between Beijing and the self-ruled island. China is deeply suspicious of Taiwan President Tsai Ing-wen, whose ruling Democratic Progressive Party espouses the island’s formal independence, a red line for Beijing, which has cut off an official dialogue mechanism with Taipei.