US President Donald Trump has approved an agreement with Saudi Arabia that could potentially provide the kingdom with uranium enrichment capability for its civilian nuclear program.

Axar.az reports, citing the Associated Press, the people, who were not authorized to comment publicly about the yet to be formally announced decision, said the agreement is expected to be announced publicly as early as Wednesday.

The deal is expected to last 30 years and is also expected to involve U.S. firms in developing the program. The deal could allow for the building of a uranium enrichment facility in Saudi Arabia following a joint U.S.-Saudi study.

But the deal, which is expected to be submitted to Congress for review, could face headwinds among lawmakers who fear that helping the Saudis fulfill their long-standing desire to enrich their own uranium would open new rounds of nuclear proliferation and competition.

Saudi Arabia is a member state of the International Atomic Energy Agency, a Vienna-based agency which promotes peaceful nuclear work but also inspects nations to ensure they don’t have clandestine atomic weapons programs.

But the agreement is not expected to include the IAEA’s Additional Protocol, which would allow for more monitoring, inspections and verification, according to one of the people.