Which parts of an EIA report are translated for overseas investors?

The matter being asked about is “Which parts of an EIA report are translated for overseas investors”, so it flags what usually causes documents like this to be rejected before summarising the general practice. Power purchase agreements carry units and price-adjustment formulas that must keep their original numeric format. Monthly generation reports serve as financial evidence and should be certified as a continuous set. High-resolution photos of seals and signatures help when the destination asks for re-verification. Record the reference number of each certification layer; it is the fastest way to trace status. Environmental impact reports cross-reference annex page numbers, so keep the original pagination. Before starting, check that names are spelled identically to the passport or ID card on every page, then confirm with the receiving body whether it wants an original, a certified copy or a certified translation, then count the number of certified sets needed before work starts, because extra sets restart the certification steps. Documents with a short validity window should be produced as close to the filing date as possible. If multiple certified sets are needed, order them all in the first round to avoid re-queuing. The terms that frame this page are parts · report · translated · overseas. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. What changes the timeline most here is whether the source documents are complete on day one. Energy joint-venture agreements usually fix a governing language; check that clause before ordering translation. Solar land leases must attach the cadastral sheets and every title deed number. Once the set is complete, check it line by line against the destination's own checklist before filing. Foreign counterparties on energy projects commonly require the translation to be bound to the original with a seal on every page. An EIA or EHIA report mixes narrative text with tables, measurement results, maps and appendices. When an overseas investor or bank asks for a translation, the request is usually limited to the executive summary, the monitoring tables and the mitigation measures. The translation must keep every figure, unit and sampling period exactly as in the original, with no rounding and no unit conversion by the translator; if the original contains an error, the licensed preparer must correct the original first. The English company name and project name must be spelled identically across the whole set, following the company affidavit, and the translator must not invent a new form. Measurement values, units and coordinates in the reports must be copied exactly, with no unit conversion and no rounding. If the original contains an error, the authority or the report preparer must correct the original, because changing only the translation makes the set inconsistent and gets it returned. A Thai energy or environmental document intended for use abroad normally starts with a copy certified by the issuing authority, is then translated by a translator who takes responsibility for accuracy, is certified by the Legalisation Division of the Department of Consular Affairs, Ministry of Foreign Affairs, and is finally legalised at the destination country's embassy or consulate where that country requires it. Thailand is not a party to the Hague Apostille Convention, so no apostille is issued for Thai documents. Cost and lead time depend on page count, the density of tables and measurement data, the target language, how many certified sets are needed and the steps the receiving authority requires, so every file is quoted before work starts. Send scans of every page together with the written requirements from the licensing authority, investor or receiving body via LINE @NAATI, call +66 80-557-8887 or email ilc@thainotary.co.th.

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