2010 China Gum Rosin Trade Conference & 2010 China Rosin/Turpentine Derivatives Conference I will be held from May 26 to May 28, 2010 in Huangshan City, Anhui Province,China. "2010 CHINAEASA CONFERENCE" will be held from May 30 to June 1, 2010 in Hefei city, Anhui Province, China. 2010 PCA International Conference will hold in Ritz-Carlton,Grande Lake Hotel,Orland,FL,USA, on Sept 19,20,21. PCA Annual Business Meeting:schedule for 22 September.