BRASILIA, March 2 (Reuters) - Brazil's government expects to mobilize more than 250 billion reais ($48.4 billion) in sustainable investments during President Luiz Inacio Lula da Silva's current four-year term, with 2026 centered on consolidating initiatives already underway, former international affairs secretary Tatiana Rosito said.

Rosito, who left her post at the Finance Ministry on Monday to become the World Bank's director for China, Korea and Mongolia starting in July, said Brazil has assembled a broad suite of financial instruments showcased during its leadership of the G20, BRICS and COP30. 

The priority now, she added, is delivering results and drawing capital rather than crafting new tools.

According to Rosito, Brazil's recent policy push has helped restore its standing as a major global player, with peers viewing Latin America's largest economy as shifting from rhetoric to delivery.

Key efforts include creating national ecological transformation guidelines, issuing sovereign sustainable bonds abroad and launching EcoInvest, a program that uses public funds to attract private investment into green projects.

Rosito also pointed to the Brazil Investment Platform for Climate and Ecological Transformation (BIP), which lists sustainable projects seeking financing. 

After Brazil unveiled the platform during its 2024 G20 presidency, the country helped develop a hub of similar initiatives under its COP presidency last year to spur cooperation on sustainable and climate finance among Global South countries.

More than 15 nations, including Colombia, Nigeria and South Africa, have since announced plans for their own platforms, Rosito said. 

"I don't see many people viewing this as an ecosystem, but it is," she said, describing Brazil's sustainable finance push as an innovative system built largely from scratch that is enabling concrete investments and supporting strategic emerging sectors.

Rosito said the sustainable development agenda has been "all but erased" from discussions in parts of the international forum circuit, particularly the G20 under this year's U.S. presidency, and argued that Brazil and its partners must continue to speak out in favor of keeping the issue in focus.

She will be succeeded at the Finance Ministry by Mathias Alencastro, previously an adviser to Finance Minister Fernando Haddad, as Reuters first reported on Friday. 

($1 = 5.1680 reais)