Personally, I wouldn't give green light, but I'm not President or Prime Minister and my opinion doesn't matter in such questions.
I'm not really sure how much active trading there was between Afghanistan and neighbour countries until Taliban came in power. But no doubts that these activities is going to reduce. For my country this question doesn't matter because our trading with Afghanistan was close to zero.
for me, as long as it's profitable for both sides of the trade, it doesn't matter. Trading is looking for profit regardless of who we trade with.
Oh, really? So, it's ok to trade with drug dealers, support terrorists and so on, as long as it's beneficial for both sides.
market > your president or prime minister.
don't forget it, even if you believe it's your presidente dealing your salaries.
what are so called "drugs"? plants of the earth? natural plants of earth? others speak about the plants of the creation of god, so if your presidente or el premier want to fight the plants of the earth, and you wish to follow him in this path, may you be warned, you will be destroyed, and all you saw as immutable will become past... this is not a threat, but a fact.
your el presidente wants to stand between two individuals seeking a trade, for example in an extract of a plant of the creation of god, so you stand between the will of men, free will, informed consent, informed and trusted on the product exchanged, and the plants of the creation...
you may be trying to chew way to more, mortal...