EVIDENCE & METHODOLOGY

Know what is measured, inferred and still being verified.

Vitel treats credibility as operating infrastructure.

PUBLIC CLAIM STANDARD

Every important claim belongs in a category.

Documented: supported by a current authoritative source or reliable internal record appropriate to the claim.

Owner-confirmed: supplied directly by Vitel leadership but still awaiting independent documentary or field verification where that matters.

Pending verification: historical, third-party or incomplete information that cannot yet be treated as a current fact.

Target / ambition: a future objective, explicitly written as such.

CORE PUBLIC SOURCES

The baseline behind this website.

01

Sierra Leone Annual Agricultural Survey 2024

Statistics Sierra Leone / Ministry of Agriculture and Food Security. Used for cassava-growing holdings, planted area, harvested area, national production and reported yield. Table 2.5 lists 262,326 ha planted, 242,380 ha harvested, 2,855,435.8 tonnes produced and 11.8 t/ha yield.

Open national survey ↗
02

FAOSTAT — Crops and livestock products

FAO’s cross-country production dataset. Used for comparable international cassava production and ranking; it is not used to replace the national survey’s richer Sierra Leone operating baseline.

Open FAOSTAT ↗
03

FAOSTAT dataset metadata

FAO metadata for crop production, harvested area and yield. Used to document the comparable international dataset and time coverage.

Open metadata ↗
BASELINE RECONCILIATION

One figure can have two legitimate source roles.

The national survey is Vitel’s primary Sierra Leone operating baseline. It reports about 2.86 million tonnes of cassava, alongside planted area, harvested area and yield.

FAOSTAT reports a comparable 2024 production figure and is used for the international ranking. The website therefore cites the national survey for Sierra Leone operating statistics and FAOSTAT for cross-country comparison.

The 11.8 t/ha yield is interpreted against the survey’s 242,380 ha harvested area. It should not be multiplied by the larger 262,326 ha planted-area figure.

RANKING METHOD

Why the website says “around #21.”

The international position is calculated by sorting countries in the same FAOSTAT 2024 cassava production series. Current FAOSTAT-based rankings place Sierra Leone around #21 globally, with production around 2.86 million tonnes.

Vitel uses “around” because source revisions and ranking methods can produce small differences.

WHAT WE WILL NOT DO

Legacy evidence does not silently become a current claim.

Historical farmer relationships, land references, processing concepts, equipment, partnerships and project documents are useful evidence of institutional history. They do not prove that the same assets, relationships or operating conditions exist in 2026.

Current claims require current verification.

CORRECTIONS

If the evidence changes, the site should change.

Vitel’s public baseline will be updated when authoritative statistics are revised or current field verification materially changes an operating fact.