Yes, SGX has always been considered an area play of KXL, in that two of their properties are adjoining.

That said, their geology is quite different from that of KXL's, and I don't think the quality is the same, nor their financial structure.

SGX is traded as a proxy for KXL every time KXL has a halt and the price wants to go nuts upwards. Then people trade the real thing, KXL, and drop the SGX.