Sales of optical transceivers for wireless fronthaul and backhaul more than doubled in 2019 because of acceleration in deployments of 5G in China. This market segment will continue to grow rapidly in 2020-2021, but it is projected to decline after that, as shown below. Chinese service providers plan to complete most of their fronthaul deployments for 5G in the next 2-3 years and growing demand for these products from all other regions will not be sufficient to compensate for lower sales in China. Service providers in the US and Europe have a lot less fronthaul fiber deployed and other regions are even farther behind. While all service providers will continue to deploy more fiber and fronthaul optics, all these projects combined will not be able to match the scale of initial deployments of fronthaul optics in China.