April 25 (Reuters) - Ternium SA:
* EXPECTS OPERATING INCOME TO INCREASE IN Q2 2018 COMPARED TO Q1 2018
* ANTICIPATES STEEL SHIPMENTS IN MEXICAN MARKET TO REMAIN AT HEALTHY LEVELS
* EXPECTS STEEL SHIPMENTS AND REVENUE PER TON TO SLIGHTLY INCREASE IN ARGENTINE MARKET IN Q2 2018 VERSUS Q1 2018 Source text for Eikon: Further company coverage: (Reuters.Briefs@thomsonreuters.com)