Shares of First Phosphate Corp. (CSE:PHOS, OTCQX:FRSPF, FRA:KD0, OTC:FPHOY) closed nearly 18% higher on Tuesday after a landmark acquisition shook the North American igneous phosphate sector and drew fresh investor attention to the space. The catalyst: Fox River Resources Corporation (CSE: FOX) announced it has entered into a definitive arrangement agreement under which Avenir Minerals Limited will acquire all outstanding common shares of Fox River for C$94.3 million in cash, which surpasses the full capital originally allocated to Avenir by its parent company, Agnico Eagle Mines Ltd (TSX:AEM).