China announced Friday that it will impose a 34% tariff on imports of all U.S. products beginning April 10, part of a flurry of retaliatory measures following U.S. President Donald Trump’s “Liberation Day” slate of double-digit tariffs.

The new tariff matches the rate of the U.S. “reciprocal” tariff of 34% on Chinese exports that Trump ordered this week.

The Commerce Ministry in Beijing also said in a notice that it will impose more export controls on rare earths, which are materials used in high-tech products such as computer chips and electric vehicle batteries.

Included in the list of minerals subject to controls was samarium and its compounds, which are used in aerospace manufacturing and the defense sector. Another element called gadolinium is used in MRI scans.

China’s customs administration said it had suspended imports of chicken from some U.S. suppliers after detected furazolidone, a drug banned in China, in shipments from those companies.

Separately, it said had found high levels of mold in the sorghum and salmonella in poultry meat from some of the companies. The announcements affect one company exporting sorghum, C&D Inc., and four poultry companies.

Additionally, the Chinese government said it had added 27 firms to lists of companies subject to trade sanctions or export controls.

Among them, 16 are subject to a ban on the export of “dual-use” goods. High Point Aerotechnologies, a defense tech company, and Universal Logistics Holding, a publicly traded transportation and logistics company, were among those listed.

Beijing also announced it filed a lawsuit with the World Trade Organization over the tariffs issue.

“The United States’ imposition of so-called ‘reciprocal tariffs’ seriously violates WTO rules, seriously damages the legitimate rights and interests of WTO members, and seriously undermines the rules-based multilateral trading system and international economic and trade order,” the Commerce Ministry said.

“It is a typical unilateral bullying practice that endangers the stability of the global economic and trade order. China firmly opposes this,” it said.

Other actions include the launch of an anti-monopoly investigation into DuPont China Group Co., a subsidiary of the multinational chemical giant, and an anti-dumping probe into X-ray tube and CT tubes for CT scanners imported from the U.S. and India.

In February, China announced a 15% tariff on imports of coal and liquefied natural gas products from the U.S. It separately added a 10% tariff on crude oil, agricultural machinery and large-engine cars.

Dozens of U.S. companies are subject to controls on trade and investment, while many more Chinese companies face similar limits on dealings with U.S. firms.

The latest tariffs apply to all products made in the U.S., according to a statement from the Ministry of Finance’s State Council Tariff Commission.

While friction on the trade front has been heating up, overall relations are somewhat less fractious.

U.S. and Chinese military officials met this week for the first time Trump took office in January to shared concerns about military safety on the seas. The talks held Wednesday and Thursday in Shanghai were aimed at minimizing the risk of trouble, both sides said.