I'd appreciate it if you anyone could help me write this address in a formal letter. A factory is located 5 Km away from the city A. (It's next to the motorway from the city A to the city B)
Thanks in advance.
Here, remote places like that usually have a PO BOX or a special address that you can find by contacting them. I wouldn't just write "go 5 km to the left, turn right, go straight for 200 meters.... etc".