SINGAPORE — Shares in Hong Kong dropped sharply in Monday afternoon trade, as Chinese tech and education stocks plunged on regulatory pressure and a summit between China and the United States got off to an acrimonious start.The broader Asia-Pacific markets were mixed, with mainland Chinese stocks also falling.The Hang Seng index in Hong Kong fell 3.24%, leading losses in the region.Hong Kong-listed shares of Chinese tech giant Tencent slipped 7.61% in Monday afternoon trade. Alibaba also dropped 5.17% while Meituan fell 9.15%. The Hang Seng Tech index plunged 6.58%.Those losses came after China’s antitrust regulator ordered Tencent to give up its exclusive music licensing rights and slapped a fine on it for anti-competitive behavior, marking yet another development in Beijing’s ongoing crackdown on its domestic internet titans.Shares of private education firms listed in Hong Kong also tumbled as Chinese authorities also stepped up restrictions on the sector. New Oriental Education & Technology Group, Koolearn Technology and China Beststudy Education Group all saw their shares plummeting more than 30% each.Chinese stocks fall as tensions with U.S. riseMainland Chinese stocks declined, with the Shanghai composite down 2.42% while the Shenzhen component fell 2.963%.Geopolitical tensions between Washington and Beijing may have weighed on investor sentiment, as a high-level meeting between the two economic powerhouses got off to an acrimonious start.China’s vice foreign minister said during Monday talks with the U.S. deputy secretary of state that the two countries’ relationship is “now in a stalemate and faces serious difficulties,” according to an English-language press release from China’s Ministry of Foreign Affairs.In other markets, South Korea’s Kospi edged 0.61% lower. In Australia, the S&P/ASX 200 was little changed.Returning to trade following holidays on Thursday and Friday, Japanese stocks bucked the overall trend regionally. The Nikkei 225 jumped 1.05% while the Topix index advanced 1.1%.MSCI’s broadest index of Asia-Pacific shares outside Japan traded 1.75% lower.Singapore’s manufacturing output declined 3% in June on a seasonally adjusted, month-on-month basis, according to official data released Monday.cnbc.com