There is ZERO DOUBT.
2019 The U.S.-China-Israel Technology Triangle
Since the 1980s, Israel has had robust technological cooperation and trade with the U.S. while often, in deference to U.S. security concerns, limiting the sale of some technologies to China.
https://www.cfr.org/articles/us-china-israel-technology-triangle
2013 Report: Israel Passes U.S. Military Technology to China
In the early 1990s then-CIA Director James Woolsey told a Senate Government Affairs Committee that Israel had been selling U.S. secrets to China for about a decade. More than 12 years ago the U.S. demanded Israel cancel a contract to supply China with Python III missiles, which included technology developed by the U.S. for its Sidewinder missiles, The Associated Press reported in 2002.
https://www.military.com/defensetech/2013/12/24/report-israel-passes-u-s-military-technology-to-china
1999 Congressional Report on Chinese Spying Indicates Israeli Involvement in Transfer of US Technology to China
https://en.globes.co.il/en/article-375278
1996 U.S. Military Technology Sold by Israel To China Upsets Asian Power Balance
https://www.wrmea.org/1996-january/u.s.-military-technology-sold-by-israel-to-china-upsets-asian-power-balance.html
1993 Israel accused of selling US secrets to China
ISRAEL has sold at least dollars 2bn ( pounds 1.3bn) to dollars 3bn of hi-tech military equipment to China, seriously undermining US efforts to limit the sale of advanced weapons to the Chinese. A Senate report due out later this week says the Israeli exports include military technology developed by the US, and which Washington expressly forbids from being exported to China.
https://www.independent.co.uk/news/world/israel-accused-of-selling-us-secrets-to-china-1510406.html