Why do you say Regan? Nixon normalized relations, Clinton let it into the WTO, and those seem to be the most significant events.
> Reagan had been a prominent spokesman on behalf of Taiwan in the political arena, but his advisors convinced him to announce in his 1980 campaign that he would continue the opening to China. Haig argued strenuously that the People's Republic of China could be a major ally against the Soviet Union. Beijing refused to accept any two-China policy but agreed to postpone any showdown. As President, Reagan issued the "Six Assurances" to Taiwan and a joint communique with the PRC reaffirming the one-China policy.[31] As the Cold War wound down during Reagan's second term, and Shultz replaced Haig, the need for China as an ally faded away. Shultz focused much more on economic trade with Japan. Beijing warmly welcomed the president when he visited in 1984.[32]
> In commercial space travel, Reagan backed a plan which allowed American satellites to be exported and launched on China's Long March rockets.[33][34] This was criticized by Bill Nelson, then a Florida representative, as delaying U.S.'s own commercial space development, while industry leaders criticized the idea of a nation-state competing with private entities in the rocketry market.[35] The China satellite export deal continued through Bush and Clinton administrations.[34]
Compare to what it has for Clinton, which is too long to quote fully: https://en.wikipedia.org/wiki/Foreign_policy_of_the_Bill_Cli..., and https://en.wikipedia.org/wiki/Foreign_policy_of_the_Bill_Cli...:
> Clinton's highest priority was to maintain trade with China, boost American exports, expand investment in the huge Chinese market, and create more jobs at home.[24] By granting China temporary most favoured nation status in 1993, his administration minimized tariff levels in Chinese imports. Clinton initially conditioned extension of this status on Chinese human rights reforms, but ultimately decided to extend the status despite a lack of reform in the specified areas of free emigration, no exportation of goods made with prison labor, release of peaceful protesters, treatment of prisoners in terms of international human rights, recognition of the distinct regional culture of type at, permitting international television and radio coverage, and observation of human rights specified by United Nations resolutions.
> In 1998, Clinton paid a friendly nine-day visit to China. Albright defended the trip by saying, "Engagement does not mean endorsement."[28] In 1999 Clinton signed a landmark trade agreement with China. The agreement–the result of more than a decade of negotiations–would lower many trade barriers between the two countries, making it easier to export U.S. products such as automobiles, banking services, and motion pictures. The Chinese citizens ability to afford and purchase U.S. goods should have been taken into consideration. However, the agreement could only take effect if China was accepted into the WTO and was granted permanent "normal trade relations" status by the U.S. Congress. Under the pact, the United States would support China's membership in the WTO. Many Democrats as well as Republicans were reluctant to grant permanent status to China because they were concerned about human rights in the country and the impact of Chinese imports on U.S. industries and jobs. Congress, however, voted in 2000 to grant permanent normal trade relations with China.[29] In 2000, Clinton signed a bill granting permanent normal trade relations to China, and American imports from China massively increased in the subsequent years.[30] Clinton's last treasury secretary, Lawrence Summers, argued that Clinton's trade policies were technically "the largest tax cut in the history of the world" in that they reduced prices on consumer goods by lowering tariffs.[31]
> ...
> Clinton's May 28, 1993 Executive Order 128950 linked future extension of China's most favored nation trading status to China's progress on U.S.-defined human rights measures.[127]: 222 China made virtually no effort to comply with the U.S. conditions and in mid-1994 Clinton changed his position,[127]: 223 de-linking the China's most favored nation status from human rights issues.[