I could not tell you what to do,but here are some observations.Usually the share price drops after a rights offer as then there so many more shares in circulation and some holders buy or if connected to the company in some way get the shares cheaper.Soon ad the issue hits the market and drops a couple of cents those people also sell forcing the price down further.In the medium term MTX should do well as there is a immediate shortage of copper .How ever in about two years time there will be adequate supplies.Hopefully the Congo will be stable,they have not a good record in political inteference in mining.In the past they destroyed Anglos copper projects,which lead to the mines closing and a depression there.