Toronto-Marsulex Inc. reported a 64.9 percent increase in sales for the fourth-quarter ending Dec. 31, 2010, to $85.6 million from the year-ago $51.9 million. Revenues were up, due in part to increased sales volumes of sulfur-based products in the Western Markets segment, as well as increased prilled sulfur revenue in the Industrial Services segment. While fourth-quarter earnings were up 295 percent to $23.7 million from the year-ago $6 million, much of that increase was a one-time gain of about $17 million from the sale of its Stablex business to U.S. Ecology Inc. Absent that, earnings were level with those of a year ago at $5.7 million. The gain also boosted full-year earnings to $45.6 million on sales of $288.8 million, compared to the prior year’s $33.5 million on sales of $262 million. Absent the gain, earnings from continuing operations were $27.1 million. As reported in 2010, Marsulex continues to look at its strategic options.