Yet many contentious issues between where the us and china have signed these two countries still remain. Areas including technology and innovation could determine the economic and military power of these two superpowers. That has been left the first phase of a trade agreement, signalling a ceasefire for phase two negotiations and until in the trade war that has rattled the global economy. China has promised to buy an extra then Donald Trumps tarus remain on 200 billion a year worth of us farm produce. Two thirds of all us imports from and an extra 75 billion worth of industrial products. China. Michelle fleury, bbc news in return, the us is halving its tariffs or import taxes on 120 billion worth of chinese goods. Tariffs. But most tariffs lets get some reaction now will remain in place. From our Asia Business correspondent a tax of 25 will still be charged karishma vaswani. On chinese imports worth 250 billion a year. And President Trumps biggest complaint that china unfairly subsidis