China calls on U.S to protect business environment

China has called on Washington to avoid damaging business confidence following a report U.S authorities are investigating whether Chinese tech giant Huawei violated sanctions on Iran.

A foreign ministry spokeswoman, Hua Chunying, said that China opposes any country imposing unilateral sanctions based on its own law.

Asked about a report by the 'The Wall Street Journal' that Huawei was under investigation, Hua said: "We hope the U.S will refrain from taking actions that could further undermine investor confidence in the U.S business environment and harm its domestic economy and normal, open, transparent and win-win international trade."

In a separate case, Washington barred ZTE Corp., another Chinese tech company, from exporting U.S technology in a case over exports to Iran and North Korea.

ZTE warned that might threaten its survival.