Is my income haram if the way I earn is halal but illegal?

I live in a non muslim country,and recently I started working for a 'tree planting' company. So they import the quarter of their trees from foreign countries but gets the rest illegally from mountains, but the tree is not considered rare or about to be extinct, it's just illegal to take trees from mountains. Islamicly it is a good deed to plant a tree and it's also halal to get trees from mountains but since it is illegal in my country,is my income haram or am I just sinfull for doing illegal stuff?