"We urge the US to not continue going down the wrong path, or China will take countermeasures, and the US must bear all consequences," it added.
Chinese Vice Foreign Minister Le Yucheng also summoned US Ambassador to China Terry Branstad "to lodge stern representations and strong protest" to the passing of the Act.
The two countries are still immersed in negotiations to end their trade war, which could be affected by the bills, however the statement does not specify the countermeasures it intends to apply.
The Hong Kong government also expressed its "strong opposition" to the new laws, saying in a statement that they "contravene in Hong Kong's internal affairs" and would harm relations with the US.
"The two acts are unreasonable. Although human rights and democracy are mentioned in the title of the Act, some of the provisions in the Act are actually about export control and enforcement of the sanctions imposed by the United Nations in Hong Kong, which are totally unrelated to human rights and democracy in Hong Kong," a government spokesman said.
The Hong Kong Human Rights and Democracy Act 2019, passed last week by the US Senate, requires the US State Department to conduct a review at least annually as to whether Hong Kong retains enough autonomy from mainland China to qualify for special trade considerations, and threatens sanctions against officials responsible for human rights violations.
Following the approval by the Senate last week, the Chinese government threatened that "China will take strong opposing measures and the US has to bear all the consequences" if it was passed into law. Beijing also reportedly summoned a senior US diplomat over the move.
The second bill signed into law Wednesday prohibits US exports of specified police equipment such as teargas, pepper spray, rubber bullets and stun guns to Hong Kong.
"They are being enacted in the hope that Leaders and Representatives of China and Hong Kong will be able to amicably settle their differences leading to long term peace and prosperity for all," Trump said.
At the weekend, the pro-democracy movement in Hong Kong swept the local elections, winning 388 of the total 452 district council seats up for grabs. The side aligned with Beijing suffered a crushing defeat with only 59 councilors, compared to the almost 300 it had, while independents won five seats in the elections which saw a record 71.2% turnout.
Hong Kong was passed to Chinese sovereignty in 1997, although it still retains a degree of independence from Beijing under the "one country, two systems" formula. According to the handover deal between London and Beijing, this political system - which includes certain legal freedoms not recognized in mainland China - must be preserved until 2047.
Business Standard has always strived hard to provide up-to-date information and commentary on developments that are of interest to you and have wider political and economic implications for the country and the world. Your encouragement and constant feedback on how to improve our offering have only made our resolve and commitment to these ideals stronger. Even during these difficult times arising out of Covid-19, we continue to remain committed to keeping you informed and updated with credible news, authoritative views and incisive commentary on topical issues of relevance.
We, however, have a request.
As we battle the economic impact of the pandemic, we need your support even more, so that we can continue to offer you more quality content. Our subscription model has seen an encouraging response from many of you, who have subscribed to our online content. More subscription to our online content can only help us achieve the goals of offering you even better and more relevant content. We believe in free, fair and credible journalism. Your support through more subscriptions can help us practise the journalism to which we are committed.
Support quality journalism and subscribe to Business Standard.