May 29 (Reuters) - Synopsys ( SNPS ) suspended its

annual and quarterly forecasts just a day after issuing them, as

new U.S. export restrictions on China cast uncertainty over its

ability to sell chip design software in the key market.

The company said it received a letter from the Bureau of

Industry and Security (BIS) and the U.S. Department of Commerce,

informing Synopsys ( SNPS ) of new export restrictions related to China,

after reporting results on Wednesday.

"Synopsys ( SNPS ) is currently assessing the potential impact of the

BIS letter on its business, operating results and financial

condition," it said in a statement.