The Trump administration is crafting a big new arms package for Taiwan that could include advanced rocket systems and anti-ship missiles to defend against China, U.S. officials said, a deal sure to anger Beijing.

The package is expected to be significantly larger than one that was shelved at the end of the Obama administration, the officials said on the eve of a visit to Beijing by U.S. Secretary of State Rex Tillerson.

"The political desire is there to do a substantial sale," one administration official said, adding that internal deliberations had begun on a deal "that's much stronger, much more significant than the one that was not accepted by the Obama people."