Hi Pantoo,

Here are the answers to your questions. They reflect my understanding of warrants. Hopefully, its correct.

Yes. U'll need to pay 20cents per warrant.

The minimum qty for warrants is the same as most shares, which is in lots of 1000 warrants.

Most warrants in S'pore (I've not come across any others) are on a cash settlement basis, meaning that u cannot exercise the warrants to own the mother share. The warrant issuer will simply pay u the positive difference between the mkt price and the exercise price of the share on the expiry date.

Sell b4 exercising the warrants? I think u are refering to short selling rite? U need to buy back withing the same day or less SGX will automatically force-buy your warrants at 2 ticker prices above the next day opening price.

As mentioned above, most warrents are on cash settlement basis. Therefore u dun need to pay the exercise price.

Most warrants in Singapore are European style,not American style. The difference btw them is that European style warrents are can only be "exercise" on the expiry date, whereas American style warrants can be exercise anytime b4 the expiry date. In most cases, the mkt is quite efficient, u are highly unlikely to spot a warrant which is trading at a discount. 

Another important thing to note is to check the conversion ratio. It is not always 1:1. It can also be 4:1. Meaning that u need 4 warrants to get 1 share.