Adjacent benzene is general-purpose colophony - 290, double-loop (DC) the hand papers colophony - 260, man-made stone / stone stone colophony - 210, pull crowded colophony - 230, twine structural layer colophony - 230, twine a benzene liner colophony - 240, colophony of NPG mould pressing - 200, colophony of DPG mould pressing - 120. Raw material market rises drop each other shows, colophony market price continues to reduce 200 yuan. Market of this week raw material appears prices of concussion become divided, partial breed arranges anhydride, third for example 2 alcohol and Xin Wu 2 mellow prices rebound, and styrene suffers multiple element influence to drop continuously. At present the cost of UPR is in flabby and fixed, of partial breed rebound to be knitted together with the trip and fall below the abidance of partial breed, the possibility that makes UPR market presence fluctuant. And UPR downstream demand still is in fatigued and weak condition, northern region enters season of busy season wheat harvest, FRP factory production is affected, southern region still exit of be enslaved to be enslaved to carries suffocate suffocate, average start working leads whole UPR entire industry to still be in 50% inferior status of the left and right sides. As Huadongde the area begins to enter plum rains season, UPR produces rhythm to put delay downstream. At present accordingly this is planted low fan condition is short-term inside still do not have improving evidence, before predicting to will last to the end of the month. " experience introduction " : The downstream client of UPR is more very with export or project kind the market is relevant, accordingly downstream user often hopes to be in accept the order when can will export order for goods or one-time all lock decides the UPR amount that project order place needs and value, but the force with upriver market because UPR industry is right enough lack and control force, the price of UPR factory can passive follow of price of upriver raw material change and undertake adjustment. Accordingly, every time UPR price appears relatively during changing substantially, create the contradiction between UPR factory and downstream user easily. Divide the experience of the enterprise according to eye forehead, good means of settlement is UPR produces factory and downstream client to undertake deepness bind, the interest shares everybody, the risk is carried together, who doesn't blame. Particular way is: In sign gross contract when, sign a price to change adjust methodological clause, namely basis " colophony price index " the price index that publishs is fluctuant extent, both sides assumes price index severally 50% of fluctuant part, calculate every week the price, implement the price actually as what delivering goods day is in a week. The practice of partial enterprise proves, this kind of method not only fairness is reasonable, and those who have the price but foresight, need not both sides delivers goods every time want bargain. This experience consults for everybody.