TAIPEI ¨C Taiwan Defense Minister?Wellington Koo on Thursday said?the next arms sale package from the United States is on track after the government received a letter ?of guarantee from Washington, even as the U.S. and Chinese leaders prepare to ?meet in ?May.

A major U.S. arms package for Taiwan worth about $14 billion that ?includes advanced interceptor missiles is ready for U.S. President Donald Trump¡¯s approval and could be signed after his upcoming trip to China, Reuters reported this month, citing sources briefed on the ?discussion.

But Trump has postponed that trip, originally scheduled for early April, due to the Middle East war, ?and is now due in Beijing May 14-15.

Taiwan, which China views as its own territory, is sure to be a topic, especially after Chinese President ?Xi Jinping told Trump in a call ?last month that the U.S. must ¡°carefully¡± handle arms sales to the democratically-governed island.

Asked by reporters at Taiwan¡¯s parliament whether the Trump-Xi meeting ?would impact U.S. ?arms sales, Koo said the government had already received a letter ?of guarantee indicating the U.S. is willing to authorise the next deal.

¡°We have ?also ?been in close communication with the U.S. Department of War¡¯s Defense Security Cooperation Agency regarding its willingness to provide and sell this to us, including guidance concerning the items, the amount, and the transaction,¡± he added, without offering details.

The package is still undergoing ?an internal U.S. review and Taiwan has not received any notification about delays, Koo said.

The U.S. State Department, which generally handles queries about government policy toward?Taiwan, did not immediately respond to a request for comment.

China has repeatedly demanded Washington end arms sales to Taipei, the last of ?which ?in December was worth $11 billion, the largest ever for Taiwan.

Taiwan¡¯s opposition-dominated parliament ?is continuing to debate President Lai Ching-te¡¯s $40 billion in extra defence spending, though it has already ?authorized the government to sign U.S. agreements for four arms sales packages worth some $9 billion before the budget is passed.

Koo said the government was talking to the U.S. about possibly deferring payment or reducing the initial payment given he could not predict when ?parliament may approve the funds.

The U.S. is Taiwan¡¯s most important international backer and weapons supplier, despite the lack of formal diplomatic ties, and is bound by law to provide the island with the means to defend itself.

Taiwan has faced stepped-up Chinese military pressure in recent years, including war games.