Wingcopter, together with partners Merck and the University of Applied Sciences in Frankfurt, launched drones, which completed the first flight of the new application. The goal is to deliver loads instead of trucks or transfer loads between two physically separate offices. The first flight was made about 25 km, taking a sample of pigments from one Merck laboratory in Gernsheim to the headquarters in Darmstadt, Germany.

https://techcrunch.com/2020/02/05/german-drone-delivery-trial-paves-the-way-to-replacing-trucks-for-inter-office-deliveries/