Almost half of the companies surveyed by the American Chamber of Commerce (AmCham) in Taiwan are revising or plan to revise their business continuity plans amid tensions with China, while a growing number reported being impacted by those strains.

In a survey released on Tuesday, which took place between Nov. 15 and Dec. 16, AmCham Taiwan said 33% of respondents said their operations had been "significantly disrupted" by the increase in tensions, compared with 17% when it did a flash survey in August right after China began war games.

Political uncertainty was the biggest factor deferring members from further investment in Taiwan, and more than half of respondents said cross-strait relations should be the government's top priority in the coming three years, it said.