A senior U.S. official says the Obama administration will notify Congress on Wednesday of a decision to sell Taiwan new military planes or upgrade its existing fleet of F-16 fighter jets.
The official noted leaked reports that it has opted for the upgrade of Taiwan's existing fleet.
The official declined to say whether that was accurate, but said that would still mean the administration has sold more weapons to Taiwan since 2009 than the U.S. had in the four previous years.
The official said the reports, if accurate, would mean Taiwan gets 145 planes instead of 66, without a loss in quality and at a cheaper price.
The official spoke on condition of anonymity because of the sensitivity of the issue. China has expressed great concern over the possible sale.