I've ordered several different PCBs over the years from JLCPCB in 5 pcs quantities. Some of the design I only needed 1 or 2 pcs, the other 3 or 4 remaining PCB aren't used. Some PCBs ended up not being used at all as I discovered design flaws on my side. They are all in HASL finish. Now, I have a lot PCBs that I need to get rid of. Pretty sure the PCBs going into the garbage is NOT appropriate. I live in Guelph, Ontario, Canada but can't find a definitely answer on if I can recycle them or not in that location. This made me wonder how everyone else deals with this problem?