液化石油气（LPG）投资周报：基本面好转燃烧修复，PG内外盘同步稳中上行-20250901

1. Report Industry Investment Rating No information provided in the report regarding the industry investment rating. 2. Core View of the Report The fundamentals of LPG have improved, and the combustion demand has recovered. Both the domestic and overseas PG markets are running stably. The CP price remains stable, the demand for propane and butane in the Far East has been repaired periodically, and the high - level warehouse receipts are driving the PG reverse spread operation. In the short term, the PG futures price is affected by delivery and is expected to decline, but the overseas price is stable, and there is an expectation of subsequent repair [4]. 3. Summary by Related Catalogs 3.1 Energy and Chemical Product Price Monitoring - Different energy and chemical products have different price trends. For example, the current price of LPG is 4,411 yuan/ton, with a daily increase of 0.05%, a weekly increase of 0.55%, a monthly increase of 14.42%, and an annual decrease of 12.34% [3]. 3.2 LPG Fundamental Analysis - Supply: Last week, the total LPG commodity volume was about 650,000 tons (a decrease of 0.17%). The civil LPG commodity volume was 215,400 tons (a decrease of 1.03%), the industrial LPG was 206,200 tons (a decrease of 2.95%), and the ether - after C4 was 174,700 tons (a decrease of 3.03%). The LPG arrival volume last week was at a relatively low level, and the import resource supplement was limited. Some enterprises in Shandong resumed production, and the commodity volume increased month - on - month [4]. - Demand: The combustion demand has recovered, supporting the firm price of civil LPG. In the C4 deep - processing aspect, the domestic crude oil processing volume increased month - on - month, but the MTBE profit was inverted, and the alkylated gasoline profit turned from profit to loss. In the C3 deep - processing aspect, the PDH maintenance was concentrated and restarted, and the operating rate increased, which supported the demand, but the performance of propylene and terminal PP was average [4]. - Inventory: Last week, the LPG inventory in domestic factories was 171,700 tons (a decrease of 1.96%), and the port inventory was 3,075,200 tons (a decrease of 2.98%). The LPG inventory in various regions of the country showed a downward trend, and the fundamentals in various regions were gradually improving. The port arrival volume decreased significantly, but the unloading volume was more than the arrival volume, and the overall import resources showed a downward trend [4]. - Basis and Position: The weekly average basis in East China was 112 yuan/ton, in South China was 171 yuan/ton, and in Shandong was 132 yuan/ton. The total number of LPG warehouse receipts was 13,207 lots, an increase of 320 lots, and the lowest deliverable area was East China [4]. - Chemical Downstream: The operating rates of PDH, MTBE, and alkylation were 73.02%, 54.43%, and 48.29% respectively. The profits of PDH to propylene, MTBE isomerization, and alkylation in Shandong were 117 yuan/ton, - 531 yuan/ton, and - 328 yuan/ton respectively [4]. - Valuation: The PG - SC ratio was 2.29%, and the PG continuous first - continuous second monthly spread was 87 yuan/ton. The continuous increase in crude oil production dragged down the cost section, and the PG - SC cracking spread continued to strengthen [4]. - Others: OPEC+ continued to increase production, and EIA and IEA relaxed the supply - demand balance sheet, so crude oil was regarded as bearish in the long term. The newly added RMB loans of financial institutions in July showed negative growth, and the M2 - M1 scissors gap narrowed to 3.2%. The government launched consumer loan interest subsidies, and the domestic economy still faced pressure. The country phased out backward petrochemical production capacity below 2 million tons and upgraded technological facilities, and South Korea reduced the naphtha cracking capacity by 2.7 million tons [4]. 3.3 LPG Market Review - The main contract of LPG futures fluctuated higher, with a fluctuation range of 4,270 - 4,400 yuan/ton. The main contract this week was PG2510, which is a traditional peak - season contract. Although the crude oil price fell, the domestic spot market rebounded from the bottom, and the peak - season demand was expected to be strong. Coupled with the increase in import costs, the sellers pushed up the price, and the futures price followed the spot price higher. The domestic transaction price increased, but the increase was small, and the basis weakened this week. The lowest deliverable product was priced in East China. As of Thursday this week, the total number of LPG warehouse receipts on the Dalian Commodity Exchange was 13,283 lots, an increase of 335 lots compared with last Thursday [5]. 3.4 LPG Futures Price, Monthly Spread, and Cross - Month Spread Overview - Futures Price: The prices of different LPG futures contracts showed different trends. For example, the current price of PG01 was 4,202 yuan/ton, with a month - on - month decrease of 1.89% [10]. - Monthly Spread: The monthly spreads of different contracts also showed different trends. For example, the current PG01 - PG02 monthly spread was 60 yuan/ton, with a month - on - month decrease of 34.07% [10]. - Cross - Month Spread: The cross - month spreads of different contracts also had different changes. For example, the current PG01 - PG03 cross - month spread was 147 yuan/ton, with a month - on - month decrease of 14.53% [10]. 3.5 Refinery and Device Maintenance Plan - Main Refineries: Many main refineries in China had maintenance plans in 2025, including Sinopec, PetroChina, and CNOOC refineries. For example, Beihai Refining and Chemical had a full - plant maintenance from March 25 to June 6, 2025, with a processing capacity of 6.4 million tons [12]. - Local Refineries: Some local refineries also had maintenance plans, mainly in Shandong, Northeast, Central China, and North China. For example, Zhonghaiwai Energy in Rizhao had a normal - pressure distillation unit maintenance starting from May 25, 2025 [12]. - LPG Factories: Many LPG factories in China had device maintenance in 2025. For example, Shengli Heavy Oil Plant in Shandong had a full - plant maintenance from June 16 to mid - August 2025, with a normal production volume of 400 tons/day [14]. - PDH Devices: Some PDH devices in China had maintenance or shutdown situations. For example, Wanhua Chemical (Penglai) in Shandong planned to have a two - week maintenance starting from August 22, 2025 [15]. 3.6 Market Price and Spread Charts - The report also provided a series of market price and spread charts, including domestic and overseas LPG prices, basis, monthly spreads, cross - month spreads, and cross - variety spreads, to show the historical trends and changes of these indicators [19][21][27]