From January to April, domestic demand of ammonium is weak, and export is still acceptable. At the end of 2017, ammonium monoammonium still maintained a high level as a whole due to the slowdown in demand and the decline in the clearance prices of traders, but with the gradual reduction of new orders, enterprises can only execute their pending orders until the Spring Festival. In order to ship as usual during the Spring Festival and reduce the stock backlog, in January 2018, ammonium monoammonium enterprises began to reduce prices and absorb orders, but took over. Single effect is not ideal, after the Spring Festival, ammonium enterprises backlog a certain amount of inventory, downstream compound fertilizer enterprises start to recover slowly, pre-purchase ammonium inventory can still be maintained for a period of time, purchase intention is not big. In March, due to the pressure of enterprise inventory, some enterprises stopped production and limited production. Some enterprises entered the annual maintenance period one after another. By the end of April, the average start-up rate of Monoammonium in China was 41.81%. The enterprises stopped production and limited production seriously, especially in the main production area of Hubei monoammonium plant. However, the situation of production restriction did not make the overall market of ammonium warmer soon. From early January to the end of April, the price of ammonium showed a step-down trend, with a price reduction of 300-350 yuan (ton price, the same below). From January to April, the export situation was relatively ideal. Although the price did not change significantly, the export volume of granules in China increased month by month. Especially in March and April, some domestic ammonium plants and traders mostly had export orders in execution.

From May to June, ammonium changed from cloudy to sunny, and the sunny continued: the situation of weak domestic demand of ammonium continued until May 1st. Around May 1st, the domestic market demand for monoammonium improved. Downstream compound fertilizer enterprises began to purchase monoammonium more centrally. The monoammonium enterprises executed more pending orders throughout May, at least until the end of May. It was learned that individual enterprises could execute the orders until the end of June. After that, monoammonium enterprises suspended their orders for the early stage. Then downstream compound fertilizer enterprises and traders increased their procurement enthusiasm again around June 1st, but due to the restriction of ammonium enterprises to take orders, large orders can not be obtained temporarily, mostly for small orders and appropriate purchases. In May-June, the overall starting rate of Monoammonium remained low, less than 50%; the price of Monoammonium went up by 50-100 yuan, and at the end of June, the mainstream ex-factory quotation of 55% powder ammonium in Hubei Province was 2200 yuan. The high price transaction was temporarily less. The actual acceptance ex-factory was about 2150 yuan in the early period, and the acceptance in Shandong Province was near 2300 yuan. As far as export is concerned, it is known that domestic demand has improved, and export enterprises can transfer to the domestic market more often. Some enterprises only carry out pre-export pending issuance, with fewer new export orders.

_. In July-August, the price of Monoammonium continued and the enterprises needed to be supported: the purchasing of downstream compound fertilizer enterprises around May 1st and June 1st made many of the monoammonium enterprises waiting for orders to be executed. In August, the compound mast plant in Northeast China considered that the risk of Monoammonium purchasing was not high, and purchased about 10,000 tons of Monoammonium in advance, which made the market atmosphere of ammonium good and the personages in the industry had a good atmosphere for monoammonium. Confidence is still relatively high. Although the new ammonium single transaction slowed down in July and August, the price of ammonium is mainly stable, supported by the enterprise's pending development. In addition, raw phosphorus ore, sulphur and liquid ammonia are still showing a steady upward trend, and the price of ammonium enterprise is continuing.

_. From September to October, ammonium Enterprises Limited orders and supported the price of ammonium phosphate by many good points. After September, the demand for ammonium improved. Some compound mast plants purchased tens of thousands of tons of ammonium respectively and came to the plants at the end of the month. Because ammonium Enterprises Limited orders and the demand of compound fertilizer enterprises, some compound fertilizer enterprises gradually accepted high-price ammonium, and at the end of September, 55% powder ammonium in Hubei accepted high-end ammonium. Exit has reached 2350 yuan, and around the 11th anniversary, compound fertilizer enterprises have purchased monoammonium one after another. However, due to the small amount of Monoammonium enterprises'orders, some traders are bullish on monoammonium, and their purchasing enthusiasm is relatively high. By then, 55% of powdered monoammonium in Hubei had actually acceptance up to 2350-2400 yuan. From the end of August to the end of October, the price of ammonium increased by about 150 yuan. The price of raw materials is also good. The price of phosphate ore has risen by 50 yuan around November, resulting in tight supply in a short time. The price of port sulphur has remained high before the end of October. The price of domestic and port sulphur is over 1500 yuan, and the price of liquid ammonia is relatively high. Therefore, the cost of raw materials is more supportive.
From November to December, the demand for ammonium was light, and began to decline. In late October, ammonium began to decline. Demand was very light. There were not many orders to be issued in advance. Some enterprises near the Phosphorus and Compound Fertilizer Conference still had a glimmer of hope for ammonium. The quotation of Hubei large factories was firm, and the actual trading preferences were increased. The quotations and transactions of enterprises in other areas were gradually reduced. In late November and early December, some enterprises in other areas had a glimmer of hope for ammonium. New orders of ammonium enterprises are less traded, there is little left to be issued, inventory pressure of enterprises is gradually increasing, prices are gradually declining, some enterprises have stopped quoting, transaction orders are negotiated, some enterprises can talk about the end of March, and the price of ammonium at the end of December is about 150 yuan lower than that at the end of October. The downstream compound fertilizer enterprise sells its own finished product inventory slowly, and its start-up has been affected by environmental protection and other pressures. Its confidence in raw materials has declined, and its purchase is less. Recently, only a few large factories in Shandong and Henan have been heard to replenish their warehouses appropriately.

In summary, at the end of the year, besides the light demand, the raw material cost is also lower than the previous period. Although ammonium enterprises have limited production in the near future, it is difficult to reverse the current demand situation for ammonium. It is expected that the price of ammonium will continue to decline in the near future.