A SURGE in raw material costs and a tough consumer environment hit profits at Butterkist Popcorn manufacturer Tangerine Confectionery.The Blackpool-based group, which was sold to US-based private equity investor Blackstone last year , said ebdita had fallen 17% to £14.3m in 2011, and operating profits  slid from £11.3m to £6.9m.The bad news was sweetened by a near 2% increase in turnover, from &p......for the full story register now for free or login below...