Company: SQM
Filing Date: 2025-11-19
Form Type: 6-K
Source: 0000909037-25-000042
Chunk: 4

Company: CHEMICAL & MINING CO OF CHILE INC
Filing Date: 2025-11-19
Form: 6-K
Chunk 4
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rate |     | Th. MT |     |        |     | 127.9 |     |        |     | 136.6 |     |           |      | -8.7 |     |     | (6)% |
| Specialty Blends                               |     | Th. MT |     |        |     | 103.6 |     |        |     |  96.0 |     |           |      |  7.6 |     |     | 8%   |
| Other specialty plant nutrients (*)            |     | Th. MT |     |        |     |  44.1 |     |        |     |  39.3 |     |           |      |  4.8 |     |     | 12%  |
| Specialty Plant Nutrition Revenues             |     | MUS$   |     |        |     | 259.8 |     |        |     | 249.1 |     |           | 10.8 |      |     | 4.3 | %    |

*Includes trading of other specialty fertilizers.

During the third quarter of 2025, both sales volumes and revenues slightly increased compared to the same period last year, reflecting healthy demand across our main markets, particularly in the Americas and Europe. In our SPN business line, we continue to advance our strategy of offering tailor-made solutions to our clients. This has led to a shift in our product mix, with a greater emphasis on specialty blends and high-value plant nutrients, allowing us to both diversify our portfolio and strategically allocate products to the most attractive markets. Gross profit (1) for SPN segment accounted for 12% of SQM’s consolidated gross profit for the nine months ended September 30, 2025.

| SQM S.A. 3Q2025 Earnings release |     | 3 |

Iodine and Derivatives Revenues from sales of iodine and derivatives during the nine months of 2025 totaled US$770.8 million, an increase of 3.8% compared to US$742.8 million reported for the nine months of 2024. Revenues from sales of iodine and derivatives during the third quarter of 2025, totaled US$244.6 million, an increase of 4.7% compared to US$233.5 million reported for the third quarter of 2024. Iodine and Derivative Sales Volumes and Revenues:

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