It's easy to miss, so I'll try to be more detailed than usual directions. On the road to Pinel, you'll see a Pharmacy at the top of the hill on the right. Within a few hundred yards, you'll see Pancho Villa and Ti Bouchon restaurants on the right. Very shortly after, turn right on the first road. It's easy to miss it if you drive too fast. Go to the THIRD gate (the other day we slipped into the second by mistake and had to wait for someone to leave in order to exit). There's a small Ma Dou Dou sign at the code entry box. The factory is a short way up the hill on your left.