Vapor floats into the air last month above the Woodland Pulp and St. Croix Tissue mill in Baileyville, Maine, where construction workers were nearing completion of the installation of two new tissue machines that have led to the creation of 80 new jobs at the mill. The second machine began production earlier this month, mill officials have said.BAILEYVILLE, Maine — This faded mill town perched on the American side of the St. Croix River is actually one of Maine’s lucky ones: It still has a mill.Better still, just this year the mill has expanded, adding tissue production to its portfolio and 80 jobs with its new division, St. Croix Tissue, to its roster of employees. The mill’s pulp production side, Woodland Pulp, employs 320 people.The mill’s current owner, Hong Kong-based International Grand investment Corp., spent $150 million to purchase and bring online on two new tissue machines — work that lasted for more than two years since the expansion was announced in March 2014.The addition of two new tissue machines and 80 more jobs at the mill has been “a great source of happiness” for Baileyville and surrounding towns, according to Richard Bronson, town manager of Baileyville.