In my working life, my team and I provide technical support (chemistry and process engineering) for a global supply chain making a chemical product. This links into many areas of the supply chain. Typical activities link to
raw material procurement (checking new sources have the right quality)
developing an providing technical solutions to get raw materials safely from tankers or bags into the manufacturing plant or products out of the plant
projects to increase the rate of production to meet projected demands from customers (via planning)
reducing environmental impact and managing wastes
strategic change projects in production