In November 2017, in response to efforts by China to purchase tech companies based in the US, Manchin was one of nine senators to cosponsor a bill that would broaden the federal government's ability to prevent foreign purchases of U.S. firms through increasing the strength of the Committee on Foreign Investment in the United States (CFIUS). The scope of the CFIUS would be expanded to allow it to review along with possibly decline smaller investments and add additional national security factors for CFIUS to consider including if information about Americans would be exposed as part of transactions or whether the deal would facilitate fraud.