The Prime Minister is remaining tight lipped about the intricacies of discussions in Beijing, but said issues with Huawei did come up.
The company's plans to build a 5G network here were put on ice due to cyber security concerns, which soured the Chinese government's relationship with New Zealand.
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Jacinda Ardern met with Chinese Premier Li Keqiang and President Xi Jinping on Monday night (NZ time) during a 24-hour-long trip to China.
She didn't want so share details of the talks, but was adamant they were productive.
"I did proactively raise the issue of Huawei and the process that New Zealand has around our legislation and what makes that unique. I did raise issues around cyber security."
The talks went overtime, but Ardern said that was simply down to the quality of the conversation being had.
"I would describe the meeting today as constructive and warm... [We] went 10 minutes over time but we were having good conversation, no other reason."
She said there is no mistrust between the two countries, but there had been some differences.
"The differences between us certainly should not, and will not, define the relationship. Our relationship is too long, too great in history and has a layer of depth to it."
Ardern said other topics covered included free trade, climate change and human rights.
She also signed a new Memorandum of Arrangement formalising a financial dialogue between the New Zealand Treasury and the Ministry of Finance of the People’s Republic of China.