Taiwan SDDS index

• Data are disseminated on the Production Index, a Laspeyres index (2016=100) which covers the manufacturing, mining & quarrying, electricity & gas supply and water supply industries.
• The index measures the quantities of commodities produced. The data are obtained primarily from the Current Production Statistics Survey which covers 2,684 commodities surveyed each month at establishments and companies in the mining and manufacturing sectors.
• The index is calculated from the production weighted by unit  value-added of selected products; the value-added values are obtained from the Factory Registration Update Survey conducted in 2015.
•  The index is re-based and the weights are revised every 5 years. The data are seasonally adjusted, using the X-13-ARIMA method.

Monthly

Within 21 to 25 days after the end of the reference month.

Release dates for the coming 4 months are published on the MOEA internet website (http://www.moea.gov.tw/Mns/dos_e/content/Content.aspx?menu_id=7021). A recorded phone message at MOEA (886-2-23419943) provides information on release dates.

The data are released simultaneously to all interested parties by the following:

1.Economic Indicators-Indexes of Industrial Production

(http://www.moea.gov.tw/Mns/dos_e/home/Home.aspx)

2.Yearbook of Industrial Production Statistics

• Department of Statistics, Ministry of Economic Affairs (MOEA), is responsible for compiling the data for the Indices of Industrial Production.
• Most of the monthly basic data concerning the indices have been obtained from the result of Current Survey of Production.
•  The Statistics Law strictly protects the confidentiality of any information supplied by individuals, judicial persons or groups.

No government officials outside the Department of Statistics, MOEA, have access to the data prior to their release to the public.

The Director of Department of Statistics, MOEA, provides comments, technical and interpretative, on the data.

The data are preliminary when first released and are revised twice.

(1) A "Preliminary Statistic Newsletter on Industrial Production Monthly", based on initial telephone surveys and received questionnaires, is released on the 23st day of each month （Newsletter is available at http://www.moea.gov.tw/Mns/dos_e/home/Home.aspx）.After formal survey is completed, a detailed "Industrial Production Statistics" is compiled before the 20th day of the next month. Please check our web site at( http://www.moea.gov.tw/Mns/dos_e/content/ContentLink.aspx?menu_id=9524) for the latest data.

(2) When the revised report for March is published, each index for every month of the previous year is revised to compile the final series. Annual revision is published in the yearly bulletin "Yearbook of Industrial Production Statistics", which contains historic data. The statistical series contained in the current issue of the publication always supersede the ones contained in the previous issues.

The public is informed of major changes in methodology in advance.

A brief description of the methodology and sources is published in the " Yearbook of Industrial Production Statistics ".

• The industrial production indices are classified according to the Standard Industrial Classification System of The Republic of China (SICS of ROC) into 2-digit and 4-digit levels.
•  Some of the data series are available as far back as 1946.