April 15 (Reuters) - Almaden Minerals Ltd AMM.TO :
* LOWER COURT IN MEXICO RULES ON CONSTITUTIONALITY OF MEXICAN MINERAL TITLE SYSTEM AND FORMER CLAIMS HELD BY ALMADEN
* ALMADEN MINERALS LTD - LAWSUIT FILED AGAINST MEXICAN GOVERNMENT REGARDING CLAIMS ORIGINALLY HELD BY ALMADEN WHICH COVERED AREA INCLUDING IXTACA DEPOSIT
* ALMADEN MINERALS LTD - RULING CAN BE APPEALED BY BOTH GOVERNMENT OF MEXICO AND ALMADEN
* ALMADEN MINERALS LTD - BELIEVES THAT LAWSUIT IS PART OF A BROAD EFFORT BY SPECIAL INTEREST GROUPS TO CHANGE MINING LAW
* ALMADEN MINERALS LTD - CONTINUES TO ADVANCE IXTACA TOWARDS PRODUCTION
* ALMADEN MINERALS - LOWER COURT RULED MEXICAN MINERAL TITLE SYSTEM IS "UNCONSTITUTIONAL" & ORIGINAL MINERAL CLAIMS SHOULD BE HELD EXCLUSIVELY FOR CO