Jeffrey Cook
Analyst · Goldman Sachs
Thank you, Frederic. Moving to Slide 9, net sales adjusted for constant currency increased a strong 14.2% for the quarter on higher LIP and RTL volume. $21.7 million of the increase in sales was due to improved volume and mix and $3.9 million of it was due to royalty revenue.
Turning to Slide 10, volume trends, changes in unit volume reflect general trends within the industry. LIP growth of 47% during the quarter from EU LIP implementation and resulting SWM share gain was partially offset by cannibalization of conventional cigarette paper requirements. However, we are pleased with an overall tobacco paper sales volume increase in the first quarter of 2012, up 2%. This is the first year-over-year quarterly increase in tobacco paper sales volume in the past 6 quarters, primarily from share gains in EU since the LIP adoption. Reconstituted tobacco sales volume increased 13% during the first quarter, compared to the prior year, and we now expect moderate growth in RTL sales for the total year 2012.
Slide 11, operating profit comparisons. First quarter operating profit, adjusted for $18.7 million of restructuring and impairment charges, increased $15.7 million or 57% from the first quarter of 2011 due to an $11.9 million benefit of higher sales volume and favorable product mix combined with $3.9 million in royalty income. Lower wood pulp prices and other cost of sales offset higher non-manufacturing expenses, inflation and currency translation effects. The $18.7 million in first quarter 2012 restructuring and impairment expense included a $16.9 million non-cash impairment charge in North American property, plant and equipment. North American NBSK wood pulp prices averaged $870 per metric ton for the first quarter, down from $970 per metric ton during the first quarter of 2011 and down 5.2% versus the fourth quarter of 2011. However, pulp prices are projected to increase slowly beginning in the second quarter. Our adjusted operating margin for the first quarter rose to 21.3%, up 610 basis points from the first quarter of 2011. Foreign currency translation impacts were net unfavorable to operating profit by $0.9 million during the first quarter, due mainly to impacts from the euro in relation to the U.S. dollar.
In Slide 12, this shows the strength of SWM's first quarter adjusted operating profit by business segment. Both the Paper and RTL segments, as well as SWM in total, improved significantly on a year-over-year basis. Further year-over-year increases in SWM adjusted operating profit are expected in 2012 as we realize the first full year of EU LIP regulation.
Our first quarter 2012 adjusted earnings per share as shown on Slide 13, was the second-highest quarter in SWM history at $1.78 per share behind only Q4 of 2011. However, if you adjust to fourth quarter 2011 EPS to exclude those portions of the Delfor royalty income that did not relate to that quarter sales activities, our first quarter 2012 EPS is in line with the prior quarter's strong performance in spite of weaker euro currency.
The impact of our 2012 share repurchase program was only $0.01 per share on first quarter results. Through April 27, 2012, we have purchased approximately 673,000 shares in the 2012 share repurchase program aggregating $45.6 million of the authorized $50 million.
Moving to Slide 14. Our adjusted EBIT improved by 54% or $15.4 million from the first quarter of 2011 due to the onset of EU LIP regulation in late 2011 and strong performance in our RTL business. Adjusted EBITDA from continuing operations totaled $54.1 million for the first quarter of 2012, which is up from $36.8 million in the first quarter of 2011. Our trailing 12 months of adjusted EBITDA is now slightly in excess of $200 million.
Turning to Slide 15. SWM net debt decreased by $7.3 million during the first quarter, despite a $21.6 million use of cash for share repurchases and $4.5 million for an equity injection into CTS. The decrease in net debt versus year-end 2011 reflects solid cash generation from operation, including cash provided by a decrease in working capital of $4.8 million during the quarter.
Total debt was 23.4% of capital and SWM's net debt to adjusted EBITDA ratio remains low at 0.30 as of March 31.
In the short run, we do not expect slightly -- we do expect slightly higher net debt at the end of the second quarter due to the level of share repurchases already completed in April and substantial equity injections for CTS planned for the next quarter. However, net debt is expected to decline in the second half of 2012 as any remaining share repurchases and other cash requirements will be more than offset by continued strong generation of cash from operation.
Now moving to Slide 16. For 2012, we expect cash usage to be considerably below 2011 levels. Capital spending was $7.8 million during the first quarter of 2012, well below the $27.7 million incurred during the prior year quarter. The 2011 capital spending included $19 million toward construction of the RTL facility in the Philippines to a mothball state and $4.4 million toward the completion of the LIP printing facility in Poland.
For the full year of 2012, we expect capital spending of approximately $35 million, more in line with historical maintenance levels. We expect other cash usage, including funding the China RTL joint venture of between $30 million and $40 million.
Return on invested capital in 2012, as shown on Slide 17, increased to 21.1%, well above SWM's cost of capital and above prior year levels, primarily due to increased net income in 2012 compared to 2011. Return on invested capital is expected to remain strong in 2012 due to the earnings gains from EU LIP on relatively stable levels of invested capital.
Slide 18 summarizes our financial guidance. Despite the negative year-over-year impacts of the euro, already experienced in the first quarter, and assuming no worsening during the remainder of 2012, we expect 2012 adjusted diluted earnings per share of $7.20. This guidance also excludes the benefit from 2012 share repurchases.
Based on share repurchases through April 27, 2012, we estimate the current-year benefit from repurchases to be approximately $0.22 per share. We continue to expect to realize royalty revenue in 2012 associated with our existing LIP patent license agreement that will be greater than $12 million. The key risk to 2012 earnings continued to be volatile currency markets, as well as further legal expenses related to LIP patent actions. This concludes our remarks. Jackie, please open the line for questions.