April 13 (Reuters) - Sayona Mining Ltd SYA.AX :
* Funds raised under SPP will be used to accelerate development of authier project in Canada
* Offers eligible shareholders opportunity to apply for new, fully paid ordinary shares in Sayona under a share purchase plan
* SPP is underwritten to $1.5mln by Patersons Securities Limited Source text for Eikon: Further company coverage: SYA.AX