Our History

1988

Sociedad de Inversiones Oro Blanco S.A. was incorporated.


1990

Oro Blanco became the parent company of Sociedad de Inversiones Pampa Calichera S.A.


2011

Oro Blanco split off to form Nitratos de Chile S.A. The Company retained an 88.53% stake in Sociedad de Inversiones Pampa Calichera S.A.


2013

Oro Blanco issued a bond in the U.S. for US$100 million at an annual interest rate of 8.50%, which was paid in advance.


2018

ICR Chile certified Oro Blanco’s crime prevention model for the period from December 31, 2018, to July 1, 2020.


2019

Sociedad de Inversiones Pampa Calichera S.A., Potasios de Chile S.A., and Global Mining SpA signed a shareholders’ agreement with Inversiones TLC SpA (a subsidiary of Tianqi Lithium Corp).


2020

Sociedad de Inversiones Pampa Calichera S.A., Potasios de Chile S.A., and Global Mining SpA amended the shareholders’ agreement with Inversiones TLC SpA.


2020

ICR Chile certified Oro Blanco’s crime prevention model for the period from July 2, 2020, to July 1, 2022.


2021

Sociedad de Inversiones Pampa Calichera S.A., Potasios de Chile S.A., and Global Mining SpA amended the shareholders’ agreement with Inversiones TLC SpA.


2022

ICR Chile certified Oro Blanco's crime prevention model for the period from July 2, 2022, to July 1, 2024.


2024

The company updates its crime prevention model in accordance with new legislation.


2025

The extraordinary shareholders' meetings approved the merger by absorption of Sociedad de Inversiones Pampa Calichera S.A. into Oro Blanco, which became effective on February 2, 2026.


2026

In March, the extraordinary shareholders’ meetings approved the merger by absorption of Norte Grande S.A. into Oro Blanco and the merger of Global Mining SpA with Oro Blanco. Both mergers became effective on June 1, 2026. As a result, Grupo Pampa consists of two companies: Oro Blanco and Potasios, with Oro Blanco now consolidating the Group’s entire investment in the shares of SQM S.A.

In June, the extraordinary shareholders' meeting approved the name change from Sociedad de Inversiones Oro Blanco S.A. to Pampa Investments S.A.

Reorganization of the companies 2025 -2026


Key Milestones

IR Contact

​Av. Apoquindo 4700, Piso 16, Las Condes
Tel: +56 22 429 4900
ir@pampainvestments.cl

Whistleblower Channel:
Access Channel

Contact:
Access Form

Investor Alerts:
Subscribe

Shareholder Registry:
Access Registry


© 2026 Pampa Investments.