China’s leaders have announced plans to intensify efforts to make the country an independent “technology power.” The announcement comes as China faces American government restrictions on sales of some American technology products. In a statement this week, the ruling Communist Party said “science and technology should be self-reliant as a strategic support for national development.” It promised to speed up “the building of a science and technology power.” The announcement came after Chinese leaders met to create a five-year development plan for the state-directed economy.