Chinese cobalt refiner Yantai Cash Industrial Co. will demand suppliers show that their raw materials aren’t produced with child labor after the London Metal Exchange set a deadline for companies that ship to its warehouses to spell out efforts to combat the problem.

Mercedes-Benz, conducting the biggest test using drones to ship everyday items like ground coffee and cellphones, said the mini aircraft completed 100 drop-offs to strategically placed vans in Zurich with a perfect safety record and more deliveries are planned for next year.

UPS is heading into the year’s end inking an agreement with Big Ox Energy to purchase the equivalent of 10 million gallons of renewable natural gas (RNG) per year.