On 3 April 2025, while attending an RMB sovereign green bonds issuance ceremony and a culture and tourism promotion event for Hunan province in London, Ambassador Zheng Zeguang stated China's firm stance regarding the US' announcement of imposing "reciprocal tariffs" on China.

Zheng Zeguang pointed out that, under the pretext of "reciprocity", the US imposed high tariffs on certain countries and regions, using tariffs as a weapon. This move seriously violates WTO rules, severely undermines the multilateral trading system, and causes great harm to the interests of all parties. China is firmly against the US' planned tariff hikes on China, and will take resolute countermeasures to defend its interests. Under the current circumstances, the international community should work more closely to reject the US' unilateral, protectionist and trade bullying practices and keep the global trading system stable.