Washington: American authorities on Wednesday formally informed Hong Kong that the US has withdrawn from 3-bilateral deals with the semi-autonomous Chinese city on extradition & tax.

The statement follows President Donald Trump's verdict to revoke Hong Kong's preferential trade status as Beijing compressed down on the territory over massive & often violent pro-democracy protests last year.

In July, Trump contracted an executive order specifying that Hong Kong lacked the autonomy desired to justify special treatment as equated with China.

"As part of the ongoing implementation measures, we notified the Hong Kong authorities on August 19 of our suspension or termination of 3-bilateral agreements," the State Department held in an announcement.

"These agreements covered the surrender of fugitive offenders, the transfer of sentenced persons, & reciprocal tax exemptions on income derived from the international operation of ships."

"These steps underscore our deep concern regarding Beijing's decision to impose the National Security Law, which has crushed the freedoms of the people of Hong Kong," it held.

Beijing executed the new national security law in response to last year's pro-democracy protests. It has described the law its contents kept secret until it was enacted on June 30 as a "sword" hanging over the heads of opponents in Hong Kong. The law officially criminalizes secession, subversion, terrorism & colluding with foreign forces. Nevertheless, the primarily worded provisions outlawed specific political speech overnight, such as advocating sanctions, & greater autonomy or independence for Hong Kong.