What just happened? 5 stories from the World Economic Forum in China

After three days in Dalian covering everything from the future of trade to the history of whales, here's a look back at some of the key moments from this year's Annual Meeting of the New Champions.

1. China pledged to continue opening up its economy. Following a truce in the trade war with the US announced at the G20 meeting, China's Premier Li Keqiang outlined his commitment to building "a level playing field" for foreign firms in China. Fair access to China's vast domestic market is one of the issues at stake in the dispute between the world's two biggest economies.

2. We announced the Technology Pioneers of 2019.

One company plans to 3D-print rockets on Mars, another is using AI to make driverless cars understand the behaviour of other road users, while a third is using big data to help avert natural disasters. They are among the 56 companies that the World Economic Forum has named its Technology Pioneers 2019.

Find out how one of Tech Pioneer, Black Bear Carbon, tackles a major pollution problem.

3. The trade war is a bit like an elephant. "Smaller countries need to avoid being trampled," argued Indonesia’s Professor Mari Elka Pangestu. She was one of many participants arguing for a multilateral approach and a return to rules-based trading.

4. Top 10 emerging technologies of 2019.

Our report scanned the horizon to spot ten significant trends that could change the way we live, work and consume: from social robots to bioplastics. Watch: how three of them will help the environment.

5. How Bali banned the plastic bag.

The theme of the meeting was Leadership 4.0: Succeeding in a New Era of Globalization, and there were many thoughtful contributions on the new shape of the global economy and what it demands from leaders. But sometimes leadership also means just getting things done. Aged just 16, Isabel Wijsen has already persuaded her island of Bali to ban plastic bags.