Theresa May
Theresa MayReuters

Britain's Prime Minister Theresa May on Saturday said that the United Kingdom will be a "global leader" in free trade, post-Brexit. Ahead of attending her first international conference after taking over as Britain's Prime Minister, May told the media that it was a "golden era" for U.K.-China relations.

May will meet Indian Prime Minister Narendra Modi too where the trade relations between the two countries is expected to dominate the agenda. In addition, she will also hold talks with the U.S. President Barack Obama, Russian President Vladmir Putin on Monday after the G-20 summit ends.

She will also hold her first meeting with Chinese president Xi Jinping, BBC reported.

May, who was elected Prime Minister of the U.K. in July, post-the-referendum to leave the European Union, will also meet other world leaders of the world's 19 major economies.

May's meeting with Jingping comes at a time when she is facing a row that she should cancel construction of a nuclear power station, which has received investments from China, AFP reported.

"This is a golden era for U.K.-China relations and one of the things that I'll be doing at the G20 is obviously talking to President Xi about how we can develop the strategic partnership that we have between the U.K. and China. But I'll also be talking to other world leaders about how we can develop free trade around the globe and how Britain wants to seize those opportunities. My ambition is that Britain will be a global leader in free trade," May told the local media.

Before boarding an air plane to China, May told the media that the message for the G20 is that "Britain is open for business, as a bold, confident, outward looking country. We will be playing a key role on the world stage."