A Max Data research project

Mining Firms File Financial Statements Least Often 2026

Updated 15 July 2026Data as of 7 July 2026Verified

In short

Mining companies file a financial statement only 43.4 percent of the time, the lowest rate among Thailand's 18 major industry sections, as of 7 July 2026. Electricity and gas leads at 79.2 percent. The gap between the two is 35.8 percentage points, despite both being capital heavy sectors. The national filing rate across all classified companies sits at 63.5 percent. Five sections, including mining, construction and wholesale trade, file below that national average.

Mining and quarrying
Least transparent industry
43.4 percent filing rate
43.4%
Mining filing rate
Electricity and gas
Most transparent industry
79.2 percent filing rate
79.2%
Electricity and gas filing rate
35.8
Gap between the two
percentage points
63.5%
National filing rate

Which industries are least likely to file a financial statement?

Mining and quarrying files the fewest financial statements of any major Thai industry, at 43.4 percent of its 8,231 classified companies (DBD, 2026). Construction follows at 57.1 percent. Wholesale and retail trade follows at 59.2 percent. Construction and wholesale trade are Thailand's two largest industry sections by company count. Transportation and storage sits at 60.3 percent. Agriculture sits at 62.6 percent. Electricity and gas sits at the opposite end, with 79.2 percent of its companies on file, the highest rate in the economy. Human health and social work is close behind at 76.2 percent. The national filing rate across every classified company is 63.5 percent. Five of the 18 major sections fall short of it.

Financial statement filing rate by industry section

  • Mining and quarrying43
  • Construction57
  • Wholesale and retail trade59
  • Transportation and storage60
  • Agriculture63
  • Manufacturing65
  • Administrative and support68
  • Other services68
  • Accommodation and food service71
  • Arts and entertainment71
  • Professional, scientific and technical71
  • Education72
  • Financial and insurance72
  • Real estate73
  • Water and waste73
  • Information and communication74
  • Human health and social work76
  • Electricity and gas79

Figures in percent of companies with a filed statement.

Mining trails every other major sector. Electricity and gas, human health and information and communication file most consistently.

Filing rate by industry section, ranked lowest to highest

Industry sectionCompanies with dataTotal companiesFiling rate
Mining and quarrying3,5748,23143.4%
Construction161,921283,53457.1%
Wholesale and retail trade424,209715,97659.2%
Transportation and storage51,45485,27360.3%
Agriculture12,05119,25962.6%
Manufacturing148,653230,39664.5%
Administrative and support68,266100,69167.8%
Other services13,90920,45568.0%
Accommodation and food service59,21583,59870.8%
Arts and entertainment13,16018,48671.2%
Professional, scientific and technical99,102138,96271.3%
Education10,00413,89772.0%
Financial and insurance25,69735,56772.2%
Real estate108,441149,60872.5%
Water and waste3,5264,81873.2%
Information and communication38,78452,53773.8%
Human health and social work13,17017,29476.2%
Electricity and gas6,2047,83379.2%

Companies with a filed financial statement against total classified companies per section, as of 7 Jul 2026.

Why the mining gap matters

Mining and electricity and gas look alike on paper. Both run heavy machinery and carry large fixed assets. Average total assets per company reach 338 million baht in mining. In electricity and gas, the average climbs to 392 million baht. Yet one sector files a statement more than three times out of four and the other barely manages two times out of five. Capital intensity does not predict compliance. Company structure likely does. Mining includes a long tail of small quarry and mineral operators alongside a handful of large listed producers. Electricity and gas, by contrast, is dominated by project companies built to sell power under long term contracts that require audited accounts to draw down financing. For a lender, an investor or a supplier running due diligence on a mining counterpart, a missing filed statement is common enough that it says little on its own. The same gap in electricity and gas is a much sharper signal. Unfiled statements do not always mean noncompliance. Thai private companies must file within one month of shareholder approval of accounts, and some filings simply lag that deadline. Still, a gap of 35.8 percentage points signals something structural, not a handful of late filers.

Definitions

Filing rate
The share of companies in a section that have a financial statement on file with the registrar, out of all companies classified into that section.
Industry section
One of the 21 lettered top level categories in the TSIC industry classification system, such as mining or electricity and gas.
Classified company
A company that has been assigned an industry section code in the registry. About 1.99 million of Thailand's 1,989,709 registered companies carry this classification, leaving roughly 3,220 unclassified and excluded from this analysis.

Assumptions

Methodology

Filing rate is the count of companies with a filed financial statement divided by the count of companies classified into that TSIC industry section, both taken from the DBD registry via market_section_insight as of 7 July 2026. Three sections, public administration, households and extraterritorial organizations, are excluded from the ranking because each has fewer than 50 classified companies, which makes their ratio unstable. Filing rate measures whether a statement is on file with the registrar. It does not measure whether a company is legally required to file, whether it is currently operating, or how late a filing arrived.

How we verified this

References

  1. Department of Business Development. (2026). Registered juristic persons and financial statement aggregates. Ministry of Commerce, Thailand. https://www.dbd.go.th/
  2. Jus Laws & Business. (2026). Filing financial statements in Thailand: Deadlines, obligations, and liabilities in 2026. https://www.juslaws.com/articles/filing-financial-statements-thailand-deadlines-and-liabilities

Frequently asked questions

Which Thai industry is least likely to have filed a financial statement?

Mining and quarrying, at a filing rate of 43.4 percent, the lowest of Thailand's 18 major industry sections as of 7 July 2026.

Which industry files financial statements most consistently?

Electricity and gas leads at 79.2 percent. Human health and social work follows at 76.2 percent.

Does a missing financial statement mean a company broke the law?

Not necessarily. Thai private companies must file within one month of shareholder approval, and some filings simply lag that deadline or belong to a company that has gone quiet without formally deregistering.

Why were public administration, households and extraterritorial sections left out of the ranking?

Each has fewer than 50 classified companies in the registry, too small a base for a stable filing rate.

Cite this page

Chatpong L. (2026). Mining Firms File Financial Statements Least Often 2026. Max Data Insights. https://maxdatathailand.com/insights/which-thai-industries-file-financial-statements-least-2026

Data & corrections

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Written by

Chatpong L.

Founder, Max Data, Max Solutions Co., Ltd.

Chatpong L. leads Max Data, a company-intelligence platform built on Thailand's official business registry. He writes about the structure of the Thai economy using primary registry data. His work covers company formation, industry concentration, and regional business activity.

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This page reports company-level and aggregate statistics only. It names no individuals and makes no claims about any person. Figures are provided for information and may be revised as source data updates.