MTX is busy with a rights offer. As a shareholder you are entitled to 33.233 shares for every 100 you hold at R3.60/share. NPL's of allocation (MTXN) are awarded in the same ratio as your rights and are listed seperately for a fixed period of time (refer SENS). These NPL's can be traded and the rights have value. If you sell your NPL's you also sell your rights to participate in the rights offer. If you buy more NPL's you purchase someone else's rights and you can in that way increase the number of your share allocation and therefore your participation. I hope this helps.
Dude, i am going to pre-empt the stream of responses that are come from the forum on this question. No 1) A rights offer is one of the most basic of share concepts - you really need to gain a better understanding of what you are investing in, before you invest - seriously. OST has some great courses - and there is a lot of info on the help & education section. You can even google it. No 2) To answer your question, Metorex needs money, and they are asking you the shareholder to buy more shares, so that they can get more money. They have issued you the share holder with a number of NPL's - which are the right, but not the obligation, to buy more shares as soon as they become publically tradable. Now you can do one of 3 things - you can buy more shares, as allocated by your NPL - You can sell your rights, at the price of hte NPL - you can do nothing, which means you lose your NPL's once the new shares become tradable, which would be stupid, because then you make no money at all. Seriously, spend some time learning what you are doing!