Praxair Inc. is expanding its business and building a steam methane reformer to increase the supply of hydrogen for its liquid hydrogen plant in Niagara Falls, N.Y. The investment will serve growing customer needs for hydrogen in the Northeast and Midwest regions of the U.S. and southeastern Canada. When complete in 2015, Praxair’s Niagara Falls liquid hydrogen production capacity will increase 50%. Liquid hydrogen is delivered by customized trucks to customers in a wide range of industries, including the manufacturing of metals.