Company: SQM
Filing Date: 2025-06-12
Form Type: 6-K
Source: 0000909037-25-000030
Chunk: 9

Company: CHEMICAL & MINING CO OF CHILE INC
Filing Date: 2025-06-12
Form: 6-K
Chunk 9
---
 chemicals: The Company produces three industrial chemicals: sodium nitrate, potassium nitrate and potassium chloride. Sodium nitrate is used primarily in the production of glass, explosives, and metal treatment. Potassium nitrate is used in the manufacturing of specialty glass, and it is also an important raw material to produce of frits for the ceramics and enamel industries. Solar salts, a combination of potassium nitrate and sodium nitrate, are used as a thermal storage medium in concentrated solar power plants. Potassium chloride is a basic chemical used to produce potassium hydroxide, and it is also used oil drilling, and to produce carrageenan.

(e) Potassium: The Company produces potassium chloride and potassium sulfate from brines extracted from the Salar de Atacama. Potassium chloride is a commodity fertilizer used to fertilize a variety of crops including corn, rice, sugar, soybean and wheat. Potassium sulfate is a specialty fertilizer used mainly in crops such as vegetables, fruits and industrial crops.

(f) Other products and services: The Company also sells other fertilizers and blends, some of which we do not produce, mainly potassium nitrate, potassium sulfate and potassium chloride. This business line also includes revenue from commodities, services, interests, royalties and dividends.

18

### Notes to the Consolidated Interim Financial Statements

#### March 31, 2025

#### 1.5

### Other background
(a)

#### Employees
As of March 31, 2025, and December 31, 2024, the workforce was as follows:

|                           | Employees |                    | As of March 31, 2025 |     |       |       |     |          |       |     |                    | As of December 31, 2024 |     |       |       |     |       |
|:--------------------------|:----------|:-------------------|---------------------:|:----|:------|------:|:----|:---------|------:|:----|:-------------------|------------------------:|:----|:------|------:|:----|------:|
| SQM S.A.                  |           | Other subsidiaries |                      |     | Total |       |     | SQM S.A. |       |     | Other subsidiaries |                         |     | Total |       |     |       |
| Executives                |           |                    |                   24 |     |       |   175 |     |          |  1999 |     |