not sure exactly what you are asking so correct me if Ive misunderstood......
The table shows EXP108, 142 and Rover altogether, so Rover 1 has the fist five metals but NO lead or zinc, and Exp 108 contains silver, copper, lead and zinc but NO gold, bismuth or cobalt. So 2 completely separate resources are shown on the same table which may be the cause for confusion.
Let me know if I've misunderstood
