Adjacent benzene is general-purpose colophony 1170, double-loop (DC) the hand papers colophony 1560, man-made stone / stone stone colophony 710, pull crowded colophony 890, twine structural layer colophony 100, twine a benzene liner colophony 1060, colophony of NPG mould pressing 1070, colophony of DPG mould pressing 1090. Suitable anhydride is exceeding be in short supply, price violent wind rises, colophony price annulus is more gigantic than last week go up tone 1200- - 1600 yuan. Raw material market appears to change quickly last week, styrene and suitable anhydride price appear to rise considerably, arrange anhydride price to soare in short a week time especially 5000 yuan / ton, again refresh history is new tall. The element that brings about suitable anhydride price to rise mysteriously has 5: One of, demand of early days home market is low fan, the price lasts be issued to lower levels, trade of China and foreign countries of part of suitable anhydride plant delivers the goods, bring about home market to be able to drop apparently for supply of goods; Secondly, suffer the overhaul and effect of block of epidemic situation city, produce the Jiang Ning chemical industry that can be as high as 100 thousand tons to arrange anhydride factory production and content to shed backwater; Thirdly, law of 60 thousand tons of butane arranges Changzhou new this world anhydride weak point stops the overhaul; Two factories synchronism jockeys the exceeding shortage that caused Hua Dong area to arrange anhydride to supply; Its 4, the Hui Zhouyu of great expectations be expressinged arranges anhydride trial production newly not successful, taste without qualification yield, cause the market to anticipate come to nothing, aggravate panicky psychology; Its 5, UPR just needed to purchase downstream restore, UPR plant order increases, start working rate rises. Demand increases, and supply is exceeding be in short supply, the hurricane that caused suitable anhydride price rises, also cause shutdown of plant of a lot of UPR to wait for at the same time makings. Of UPR price rise, not be material price rises completely the cost that cause raises, and the price of excessive of be in short supply that still included place of UPR factory stop production to cause. Short-term look, law of although Changzhou is new open 60 thousand tons of butane arranges anhydride already answer produce drive, but if house is new,still cannot produce normally, the market breach of suitable anhydride is short-term inside still make up for hard, and very difficult extensive is resurgent before Jiangning arranges anhydride factory new year's day produce, if be this kind of circumstance, the UPR that the shortage that arrange anhydride causes rises in price will still last for some time. Nevertheless, the near future arranges anhydride factory to had begun to adjust exit strategy each, increase home to supply an amount, at the same time Yu Xin passes benefit city many rounds to rectify and reform, hopeful yields in the near future eligible product, alleviate suitable anhydride supply and demand is contradictory; On the other hand, in the process that rises quickly in UPR price, the demand hard to avoid of downstream market again defect is flat, accordingly, this week second half paragraph time UPR market is possible exalted look forward to is firm. " 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.