# Data Collection

Intratec collects data from a combination of public and proprietary sources, including government statistical agencies, industry associations, and direct market surveys.

## Primary Sources

- **Government agencies** — national statistics offices, energy regulators, and labor ministries across covered economies.
- **Industry associations** — sector-specific bodies that publish production, trade, and pricing data.
- **Market surveys** — periodic direct surveys of producers and buyers in key industries.

## Frequency

Data is collected on a monthly, quarterly, or annual basis depending on the dataset. Release schedules are published in the [Release Schedule](https://cdn.intratec.us/_nt/docs/intratec-data-release-schedule.pdf).

## Quality Control

Each data point goes through a three-stage review: automated range checks, cross-source consistency validation, and analyst sign-off before publication.