China passed a new law in March 2026 called the Law on Promoting Ethnic Unity and Progress. It came into force on 1 July 2026. Since then, human rights experts at the United Nations, lawmakers in the Baltic countries, and the government of Taiwan have all raised concerns about it.

The law aims to create a stronger sense of unity across China by treating it as a duty for all Chinese citizens. It gives Mandarin — the most widely spoken language in China — official status as the common language that should be used everywhere. The law also says no one can stop people from marrying based on their ethnicity, religion, or customs. China says this helps people marry across ethnic groups. But critics argue it is actually pressure on minority communities to give up their own marriage traditions.

China is also saying the law applies to Chinese people living overseas. Taiwan warned immediately that the law could be applied to Taiwanese people — which is a big concern, because China claims Taiwan is part of its territory.

What the Law Actually Does

China has 55 recognised ethnic minority groups. Each group is supposed to have some control over a region of its own. The new law sits above this system. It tries to create one unified Chinese identity that includes all groups — Tibetans, Uyghurs, Mongolians, and Hui Muslims — but it leaves the old regional system in place on paper.

What happens in practice, according to critics, is pressure toward assimilation — meaning pressure for minority groups to blend in and abandon their separate identities. Mandarin as the official language, limits on minority cultural practices, and rules about marriage all make it harder for minority cultures to exist on their own terms. Saying the law applies overseas takes this pressure beyond China's borders.

What the World Says

Eight UN human rights experts sent a letter to China on 16 April 2026 saying the law does not fit with international human rights standards, according to the International Service for Human Rights. They warned the law could force minority groups to assimilate.

Lawmakers from Baltic countries condemned the law. A group called the Inter-Parliamentary Alliance on China (IPAC) — made up of lawmakers from democracies around the world — has been helping coordinate international criticism.

The European Parliament held a debate about the law in late April. This shows that major international institutions are now paying attention to it.

Why New Zealand Should Be Watching

The part of the law that applies overseas is what will concern other governments most. If China tries to enforce this law against Chinese people living in other countries, it creates a real problem. Countries like New Zealand — which have large communities of Chinese origin and do business with China — need to pay attention. So far, New Zealand's government has not said anything publicly about the law.

Now that the law is actually in force, the key question is how China will use it. How it chooses to enforce the law, especially the overseas parts, will be what human rights groups and foreign governments watch most closely.