□The Producer Price Index increased by0.2%month-on-month in October 2025 □Themonth-on-monthchangesinthemajorsub-indicesareasfollows: oAgricultural,forestry&marine products:-4.2%oManufacturing products:0.5% DomesticSupplyPriceIndex1)&TotalOutputPriceIndex2)duringOctober2025(preliminary) 1)The Index measures changes in the price of goods and services supplied to the domestic market by thestagesofproduction.2)TheIndex measures changes in the price ofgoods andservices produced by domestic producers. □The Domestic Supply Price Index increased by 0.9%month-on-month in □Themonth-on-monthchangesinthemajorsub-indicesareasfollows:oRawmaterials:1.5%oIntermediate goodsand services:1.0% (%) □The Total Output Price Index increased by 1.1%month-on-month in TotalOutputPriceIndex ※Further statistics can be found at the Bank of Korea's Economic Statistics Systemwebsite(http://ecos.bok.or.kr). (2020=100) (2020=100) (2020=100) (2020=100) (2020=100) (2020=100) (Appendix1) 1.HowtheProducerPriceIndexisCompiled 1.DefinitionandUse ―The Producer Price Index(PPI)measures changes in the price of goodsandservices produced and transacted in the domestic market.The index 2.Frequency ―Theprices of goodsand services are surveyed oncea month. 3.PricesSurveyed:basicprices 4.ItemsSubjecttoSurvey ―Forgoods and services,the transactionamounts in the domestic marketofonlythose items accounting for more than 1/10,000 of the total ―Items marked without comparable price quotations for considerable period, 5.MethodofCompilation ―Groups ㅇBasic Groups--The main five categories are:Agricultural,forestry&marineproducts;Mining products;Manufacturing products;Electric ㅇSpecialized Groups--Ten indexes fall under this classification:Foods/Excluding-foods;Freshfoods/Excluding fresh foods;Energy/Excludingenergy;IT/Excluding IT;Excluding foods&energy;and, ―Weight:Weight is the ratio in permillage that shows how much thedomestictransaction value of a selected item and its similar ones ―Quality Adjustment Method:Methods such as production cost,directcomparison,overlapping,and imputation are generally employed to adjust 6.NotesonStatistical Use ―Thepurpose of the PPI is to measure changesinthe price,not to present ―Prices of agricultural,forestry&marine products are bidding prices in ―The PPI may be compared with the Consumer Price Index(CPI),butshouldnot be used to measure margins at the stages of producer and 2.HowtheDomesticSupplyPriceIndexisCompiled 1.DefinitionandUse ―The Domestic Supply Price Index measures changes in the price of goods 2.MethodofCompilation ―The Index aggregates and reclassifies the items in the Producer Price ―When the items in the Import Price Index are compiled by the prices atthecontract point,are used for compilation of the Domestic Supply Price 3.Notesonstatisticaluse ―The final goods and services index seems to move similarly with theConsumerPriceIndex.The PPI,however,wouldshowdifferent ―The Import Price Index adjusted by the customs clearance time is different Coverageof EachIndex 3.HowtheTotalOutputPriceIndexisCompiled 1.DefinitionandUse ―TheTotalOutput Price Index measures changesin the price of goods and 2.MethodofCompilation ―The Total Output Price Index aggregates and reclassifies the items in the ―The Export Price Index is compiled from the prices set by a contractbetweentwo parties,and customs clearance time should be consideredand 3.NotesonStatistical Use ―The Export Price index is adjusted by the customs procedure time and isdifferentfromtheExportPriceIndexcompiledbythecontractprices. CoverageofeachIndex