From smartphones to electric vehicles, digital gadgets have reshaped our lives and attracted a huge fanbase itching for new toys. A great way to predict future gadgets is to observe the supply chain, as most consumer products are the results of development from upstream sources. China is holding its first international supply chain expo in Beijing. A main part of the expo is dedicated to digital technology, where industry-leading companies from around the world gather to showcase the latest developments, which is a great chance for us to look for clues about our future gadgets. CGTN Digital's senior nerd Gong Zhe guides you around the expo.