Inflation is high and supply chains are fragile. Old-line businesses are retooling their operations to incorporate robotics and AI-powered software. Companies are looking to use technology to help freight move through ports more easily. And founders are designing new materials and new products that are more sustainable for the long term. These major trends are all reflected in this year’s Forbes Under 30 list in Manufacturing & Industry. The entrepreneurs and innovators here are building businesses in robotics, freight, new materials and manufacturing software. An increasing and important trend this year: Many of their businesses also have a social or environmental aspect.