BEIJING -- China said overseas NGOs are welcome to carry out friendly exchanges and cooperation in China.

Efficient and convenient services will be provided for overseas NGOs and their legitimate rights and interests will be protected, according to a statement from the overseas NGO management office under the Ministry of Public Security (MPS).

So far, authorities in Beijing, Shanghai and South China's Guangdong province have issued registration certificates to 32 representative offices of NGOs from outside the Chinese mainland, according to the MPS.

Registration services for overseas NGO representative offices became mandatory from Jan 1, as a new law on overseas NGOs took effect the same day.

To support the process the MPS, which is responsible for registration, has released a registration guideline, set up registration counters at provincial-level police authorities and launched a supporting website.

Registration records of some overseas NGOs, which were previously kept at the civil affairs and industrial and commercial authorities, have also been transferred to the new authority in charge.

The MPS and other authorities have held a number of meetings with representatives from overseas NGOs as well as delegates from the European Union to China and foreign embassies and consulates, to listen to their suggestions on the new process.

In Shanghai and Guangzhou, capital of Guangdong province, police have given foreign diplomats and representatives of overseas NGOs demonstrations of the new procedures.

Adopted by the top legislature in April, 2016, the new law requests all NGOs outside the Chinese mainland to secure approval to operate on the mainland.

The MPS said it will continue to improve the new service.