As we mentioned above, this Coronavirus epidemic has caused great damage for the supply chain and as a matter of fact, for every industry. There are 3 major new challenges when facing with it. Firstly, the global epidemic has led to a reduction in demand and supply and uncertainty in some of the industrial value chain. Secondly, upstream factories shut down or reduce production, leading to downstream supply and production challenges. Lastly, some of the city blockades cause regional and international logistics terminals and delays, resulting in pieces of out-of-stock or backlogs.