United States

Securities and Exchange Commission

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

of the

Securities Exchange Act of 1934

For the month of

April 2024

Vale S.A.

Praia de Botafogo nº 186, 18º andar, Botafogo
22250-145 Rio de Janeiro, RJ, Brazil

(Address of principal executive office)

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)

(Check One) Form 20-F x Form 40-F ¨

Vale's production and sales in 1Q24

Rio de Janeiro, April 16th, 2024

Vale's Q1 performance was marked by robust iron ore sales, which increased by 15% y/y, and by consistent improvement in iron ore operations. On copper, Salobo 3 reached ~90% average throughput rate in the quarter. On nickel, Canadian and Indonesian operations delivered stronger performance y/y.
Iron ore production totaled 70.8 Mt, increasing 6% y/y, driven by S11D's improved operating performance, continued asset reliability initiatives and higher 3rd party purchases. Pellets production totaled 8.5 Mt, up 2% y/y, driven by higher pellet feed availability. Iron ore sales reached 63.8 Mt in 1Q24, 15% higher y/y.
Copper production totaled 81.9 kt, 22% higher y/y, driven by a continued solid ramp-up at Salobo 3, as well as by better operational performance at the Salobo 1 & 2 plants.
Nickel production totaled 39.5 kt, decreasing by 4% y/y, mainly reflecting the Onça Puma furnace rebuild, partially offset by stronger performance at the Canadian and Indonesian operations.

Production summary

000' metric tons 1Q24 4Q23 ∆ q/q 1Q23 ∆ y/y 2024 guidance
Iron ore1 70,837 89,397 -20.8% 66,774 6.1% 310-320 Mt
Pellets 8,467 9,851 -14.0% 8,318 1.8% 38-42 Mt2
Copper 81.9 99.1 -17.4% 67.0 22.2% 320-355 kt
Nickel 39.5 44.9 -12.0% 41.0 -3.7% 160-175 kt

1 Including third-party purchases, run-of-mine and feed for pelletizing plants.

2 Iron ore agglomerates guidance, including iron ore pellets and briquettes.

Sales summary

000' metric tons 1Q24 4Q23 ∆ q/q 1Q23 ∆ y/y
Iron ore 63,826 90,328 -29.3% 55,659 14.7%
Fines1 52,546 77,885 -32.5% 45,861 14.6%
Pellets 9,225 10,285 -10.3% 8,133 13.4%
ROM 2,056 2,158 -4.7% 1,665 23.5%
Copper 76.8 97.5 -21.2% 62.7 22.5%
Nickel 33.1 47.9 -30.9% 40.1 -17.5%

1 Including third-party purchases.

Price realization summary

US$/t 1Q24 4Q23 ∆ q/q 1Q23 ∆ y/y
Iron ore fines (CFR/FOB, wmt) 100.7 118.3 -14.9% 108.6 -7.3%
Iron ore pellets (CFR/FOB, wmt) 171.9 163.4 5.2% 162.5 5.8%
Copper1 7,687 7,941 -3.2% 9,465 -18.8%
Nickel 16,848 18,420 -8.5% 25,260 -33.3%

1 Average realized price for copper operations only (Salobo and Sossego). Average realized copper price for all operations, including copper sales originated from nickel operations, was US$ 7,632/t in 1Q24.

1

Business highlights in 1Q24

Iron Ore and Pellets operations

·

Northern System: S11D's production is the main positive highlight, up 1.4 Mt y/y. S11D achieved the highest Q1 output since 2020, with continued asset reliability initiatives securing greater operational stability during the rainy season. At Serra Norte, production decreased y/y due to reduced ROM availability, as expected in the mine development plan. Shipments at Ponta da Madeira port improved by 17% y/y as a result of several initiatives to minimize the impact of rainfall, like cargo moisture management and others.

·

Southeastern System: output was 1.0 Mt higher y/y, driven by: (i) Brucutu and Timbopeba plants' solid operational performance and (ii) higher third-party purchases. These effects were partially offset by lower production at Alegria, caused by plant adjustments aiming to increase higher quality ore processing.

·

Southern System: production increased by 2.9 Mt y/y, mainly driven by greater stability at Vargem Grande and Mutuca, with initiatives to minimize rainfall impact bearing fruit and (ii) higher third-party purchases.

·

Pellets: production was 0.1 Mt higher y/y, due to increased pellet feed availability from the Southeastern and Southern System mines, driving higher pellet output in the Tubarão and Vargem Grande plants.

·

Iron ore sales increased by 8.2 Mt y/y, totaling 63.8 Mt. The strong performance was driven by the absence of port loading restrictions that negatively impacted the Ponta da Madeira port in 1Q23. The difference between production and sales is explained by Vale's supply chain effects and inventories formation driven by cargos transiting to distribution centers.

·

Average realized iron ore fines price was US$ 100.7/t, US$ 17.6/t lower q/q, largely impacted by provisional pricing adjustments due to lower-than-average forward prices on the last day of the quarter. The average realized iron ore pellet price was US$ 171.9/t, US$ 8.5/t higher q/q, as quarterly contract pellet premiums increased, while pellet sales are generally not impacted by provisional pricing adjustments.

·

The all-in premium totaled US$ 2.2/t1, slightly higher q/q. Given current market conditions with a lower price spread for low-grade materials, Vale continued to prioritize the sale of blended and high-silica products in Q1, in order to maximize its product portfolio value.

1 Iron ore fines premium of US$ -1.6/t and the weighted average contribution of the pellet business of US$ 3.8/t.

2

Copper operations

·

Salobo: copper production increased by 15.6 kt y/y mainly due to the continued ramp-up at Salobo 3, which reached ~90% average throughput in Q1. Salobo 1 & 2 plants also posted strong performance in the quarter, with 14% higher throughput rate, 10% higher productivity and 3% higher asset availability y/y. On a sequential basis, production decreased by 6.8 kt, mainly due to lower feed grades, which was expected as per the mine development plan.

·

Sossego: copper production decreased by 1.0 kt y/y and 9.1 kt q/q due scheduled maintenance shutdown and lower ore grades, as expected. Maintenance works are anticipated to be completed by late April. In January, the SAG mill achieved record results, namely: (i) highest monthly throughput since August 2018, (ii) highest productivity since October 2018 and (iii) highest operational efficiency since December 2020.

·

Canada: copper production was 0.4 kt higher y/y and decreased by 1.1 kt q/q. Copper production was positively impacted by a 1.6 kt increase in production from Canadian mines, especially as result of an 8% y/y increase in own sourced ore production at the Clarabelle mill in Sudbury. The weaker q/q performance was impacted by the winter season at the Thompson site.

·

Payable copper sales2totaled 76.8 kt in the quarter, up 14.1 kt y/y and down 20.7 kt q/q, in line with production levels.

·

Average copper realized price was US$ 7,687/t, 3% lower q/q, mainly a result of the impact of purchase price adjustments in Q4.

2 Sales volumes are lower than production volumes due to payable copper vs. contained copper: part of the copper contained in the concentrates is lost in the smelting and refining process, hence payable quantities of copper are approximately 3.5% lower than contained volumes.

3

Nickel operations

·

Sudbury-sourced ore: finished nickel production increased by 0.7 kt y/y and 0.2 kt q/q, as a result of better performance of the Sudbury mines, supported by the ramp-up of the Copper Cliff South mine, which was partially offset by corrective maintenance at the Copper Cliff Refinery.

·

Thompson-sourced ore: finished nickel production was flat y/y and 0.8 kt lower q/q. The q/q decrease was mainly a result of internal inventory rebuild after a strong quarter in 4Q23.

·

Voisey's Bay-sourced ore: finished nickel production was flat y/y and increased by 0.9 kt q/q, driven by the availability of Voisey's Bay-sourced feedstock at Long Harbour. Contained nickel in ore mined at Voisey's Bay increased by 55% y/y as the underground mines continued to ramp up.

·

Third-party feed: finished nickel production decreased by 2.1 kt y/y and 3.9 kt q/q, as planned. The consumption of third-party feed is in line with the strategy to maximize the utilization and performance of our downstream operations.

·

Indonesia-sourced material: finished nickel production increased by 4.7 kt y/y, mainly reflecting the robust performance of the Indonesia-Matsusaka-Clydach flowsheet. Production decreased by 1.1 kt q/q as result of planned maintenance at the Matsusaka refinery in March. Nickel in matte production at PTVI was 18.4 kt in the quarter, representing a 1.4 kt increase y/y and a 0.9 kt decrease q/q.

·

Onça Puma: nickel production decreased by 4.9 kt y/y and 0.6 kt q/q as operations have been halted since October 2023 for the furnace rebuild. The rebuild works were completed in mid-March. Currently, the electrical furnace is heating up and the plant is on track to resume production in early May.

·

Nickel sales totaled 33.1 kt in the quarter, 6.4 kt lower than quarterly production, mainly due to VBM's inventory strategy to meet committed sales during planned maintenance at the refineries in Q2.

·

Average nickel realized price was US$ 16,848/t, down 33% y/y and 9% q/q, mainly driven by a 36% and 4% decrease in LME nickel reference prices y/y and q/q, respectively (US$ 16,589/t in 1Q24 vs. US$ 25,983/t in 1Q23 vs. US$ 17,247/t in 4Q23). In the quarter, the average realized nickel price was 1.6% higher than the LME mainly as a result of higher share of Class I products sales, which are sold at a premium to the market reference price.

4

ANNEX 1 - Production and sales summary

1 Including third party purchases, run-of-mine and feed for pelletizing plants. Excluding Midwestern System volumes. Vale's product portfolio Fe content reached 62.0%, alumina 1.2% and silica 6.5% in 1Q24.

2 Including third-party purchases.

3 Products concentrated in Chinese facilities.

Iron ore

000' metric tons 1Q24 4Q23 ∆ q/q 1Q23 ∆ y/y
Northern System 35,929 48,852 -26.5% 35,771 0.4%
Serra Norte and Serra Leste 18,218 28,702 -36.5% 19,450 -6.3%
S11D 17,711 20,150 -12.1% 16,321 8.5%
Southeastern System 19,561 21,595 -9.4% 18,604 5.1%
Itabira (Cauê, Conceição and others) 7,599 7,979 -4.8% 7,439 2.2%
Minas Centrais (Brucutu and others) 6,408 6,658 -3.8% 5,411 18.4%
Mariana (Alegria, Timbopeba and others) 5,555 6,959 -20.2% 5,753 -3.4%
Southern System 15,347 18,949 -19.0% 12,399 23.8%
Paraopeba (Mutuca, Fábrica and others) 6,525 8,758 -25.5% 4,326 50.8%
Vargem Grande (VGR, Pico and others) 8,822 10,191 -13.4% 8,074 9.3%
IRON ORE PRODUCTION1 70,837 89,397 -20.8% 66,774 6.1%
OWN PRODUCTION 65,024 81,585 -20.3% 63,490 2.4%
THIRD-PARTY PURCHASES 5,813 7,812 -25.6% 3,284 77.0%
IRON ORE SALES 63,826 90,328 -29.3% 55,659 14.7%
FINES SALES2 52,546 77,885 -32.5% 45,861 14.6%
IOCJ 9,453 13,074 -27.7% 11,215 -15.7%
BRBF 25,715 45,199 -43.1% 20,345 26.4%
Pellet feed - China (PFC1)3 2,536 3,279 -22.7% 2,642 -4.0%
Lump 1,809 1,871 -3.3% 1,394 29.8%
High-silica products 8,490 8,646 -1.8% 5,536 53.4%
Other fines (60-62% Fe) 4,543 5,816 -21.9% 4,739 -4.1%
PELLET SALES 9,225 10,285 -10.3% 8,133 13.4%
ROM SALES 2,056 2,158 -4.7% 1,665 23.5%
SALES FROM 3RD PARTY PURCHASE 5,648 7,807 -27.7% 3,545 59.3%

Pellets

000' metric tons 1Q24 4Q23 ∆ q/q 1Q23 ∆ y/y
Northern System 766 735 4.2% 784 -2.3%
São Luis 766 735 4.2% 784 -2.3%
Southeastern System 4,852 5,618 -13.6% 4,668 3.9%
Itabrasco (Tubarão 3) 557 739 -24.6% 951 -41.4%
Hispanobras (Tubarão 4) 688 892 -22.9% - n.m.
Nibrasco (Tubarão 5 and 6) 1,153 1,585 -27.3% 1,208 -4.6%
Kobrasco (Tubarão 7) 852 899 -5.2% 948 -10.1%
Tubarão 8 1,601 1,503 6.5% 1,562 2.5%
Southern System 1,219 1,175 3.7% 1,147 6.3%
Fábrica - - - - -
Vargem Grande 1,219 1,175 3.7% 1,147 6.3%
Oman 1,629 2,323 -29.9% 1,719 -5.2%
PELLET PRODUCTION 8,467 9,851 -14.0% 8,318 1.8%
PELLET SALES 9,225 10,285 -10.3% 8,133 13.4%
5

1 External feed purchased from third parties and processed into copper in our Canadian operation.

Copper - Finished production by source

000' metric tons 1Q24 4Q23 ∆ q/q 1Q23 ∆ y/y
Brazil 60.6 76.7 -21.0% 46.1 31.5%
Salobo 48.4 55.2 -12.3% 32.8 47.6%
Sossego 12.3 21.4 -42.5% 13.3 -7.5%
Canada 21.3 22.4 -4.9% 20.9 1.9%
Sudbury 16.8 15.4 9.1% 16.3 3.1%
Thompson 0.4 2.9 -86.2% 0.1 300.0%
Voisey's Bay 2.7 2.7 0.0% 2.0 35.0%
Feed from third parties1 1.3 1.4 -7.1% 2.5 -48.0%
COPPER PRODUCTION 81.9 99.1 -17.4% 67.0 22.2%
COPPER SALES 76.8 97.5 -21.2% 62.7 22.5%
Copper Sales Brazil 56.4 76.3 -26.1% 43.2 30.6%
Copper Sales Canada 20.4 21.2 -3.8% 19.5 4.6%

1 External feed purchased from third parties and processed into finished nickel in our Canadian operations.

2 Includes intermediates produced in Thompson and PTVI, tolling and others.

Nickel

000' metric tons 1Q24 4Q23 ∆ q/q 1Q23 ∆ y/y
FINISHED PRODUCTION BY SOURCE
Canada 16.9 16.7 1.2% 16.3 3.7%
Sudbury 10.2 10.0 2.0% 9.5 7.4%
Thompson 2.4 3.2 -25.0% 2.5 -4.0%
Voisey's Bay 4.4 3.5 25.7% 4.3 2.3%
Indonesia 18.7 19.8 -5.6% 14.0 33.6%
Brazil - 0.6 -100.0% 4.9 -100.0%
Feed from third-parties1 3.8 7.7 -50.6% 5.9 -35.6%
FINISHED PRODUCTION BY SITE
Sudbury 13.8 16.2 -14.8% 14.0 -1.4%
Voisey's Bay & Long Harbour 7.7 8.3 -7.2% 8.7 -11.5%
Onça Puma - 0.6 -100.0% 4.9 -100.0%
Clydach 10.2 10.5 -2.9% 8.2 24.4%
Matsusaka 3.3 3.9 -15.4% 1.9 73.7%
Others2 4.5 5.4 -16.7% 3.4 32.4%
NICKEL PRODUCTION 39.5 44.9 -12.0% 41.0 -3.7%
NICKEL SALES 33.1 47.9 -30.9% 40.1 -17.5%

1 Includes Gold from Copper and Nickel operations.

2 Includes Iridium, Rhodium, Ruthenium and Silver.

3 Copper equivalent tons calculated using average market metal prices for each quarter. Market reference prices: for copper and cobalt: LME spot; for Gold, Silver, Platinum, and Palladium: Bloomberg; for other PGMs: Johnson Matthey.

Energy Transition Metals by-products - Finished production

1Q24 4Q23 ∆ q/q 1Q23 ∆ y/y
COBALT (metric tons) 482 549 -12.2% 597 -19.3%
PLATINUM (000' oz troy) 30 31 -3.2% 34 -11.8%
PALLADIUM (000' oz troy) 39 39 0.0% 40 -2.5%
GOLD (000' oz troy)1 104 123 -15.4% 79 31.6%

TOTAL BY-PRODUCTS

(000' metric tons Cu eq.)2 3

38 45 -15.6% 34 11.8%
6

ANNEX 2 - Energy Transition Metals: Preventive Maintenance scheduled in 2024

Q1 Q2 Q3 Q4
Copper operations
Salobo
Salobo I&II < 1 week 1 week 1 week 1 week
Salobo III < 1 week 1 week 1 week 1 week
Sossego
Sossego 4.5 weeks 4 weeks 1.5 weeks 1.5 week
Nickel operations
Sudbury
Coleman 4 weeks
Creighton 1 week 5 weeks
Copper Cliff North 3.5 weeks
Copper Cliff South 2.5 week
Garson 4 weeks
Totten 3 weeks
Clarabelle mill 4.5 weeks
Sudbury Smelter 5 weeks
Sudbury Refinery 6 weeks
Port Colborne (Ni, Co & PGMs) 6 weeks
Thompson
Thompson mine 4.5 weeks
Thompson mill 4.5 weeks
Voisey's Bay & Long Harbour
Voisey's Bay 2 weeks 1 week
Long Harbour Refinery 4.5 weeks
Standalone Refineries
Clydach 5 weeks
Matsusaka 6.5 weeks
Indonesia
PTVI (furnaces/kilns only) 0 weeks 1.5 weeks 1 weeks <1 week
Brazil
Onça Puma 11 weeks¹ <1 week <1 week <1 week

¹ Refers to the furnace rebuild. The ramp up after maintenance is not included in the number of weeks.

Note: The maintenance schedule may be deliberately adjusted if it proves beneficial for operations and the overall business. The number of weeks is rounded to 0.0 or 0.5 and may involve more than one maintenance activity within the quarter.

7

Further information on Vale can be found at: vale.com

Investor Relations

Vale IR: vale.ri@vale.com

Thiago Lofiego: thiago.lofiego@vale.com

Luciana Oliveti: luciana.oliveti@vale.com

Mariana Rocha: mariana.rocha@vale.com

Patrícia Tinoco: patricia.tinoco@vale.com

Pedro Terra: pedro.terra@vale.com

This press release may include statements about Vale's current expectations about future events or results (forward-looking statements), including in particular expectations for production and sales of iron ore, nickel and copper on pages 1, 2, 3 and 4. Many of those forward-looking statements can be identified by the use of forward-looking words such as "anticipate," "believe," "could," "expect," "should," "plan," "intend," "estimate" "will" and "potential," among others. All forward-looking statements involve various risks and uncertainties. Vale cannot guarantee that these statements will prove correct. These risks and uncertainties include, among others, factors related to: (a) the countries where Vale operates, especially Brazil and Canada; (b) the global economy; (c) the capital markets; (d) the mining and metals prices and their dependence on global industrial production, which is cyclical by nature; and (e) global competition in the markets in which Vale operates. Vale cautions you that actual results may differ materially from the plans, objectives, expectations, estimates and intentions expressed in this presentation. Vale undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information or future events or for any other reason. To obtain further information on factors that may lead to results different from those forecast by Vale, please consult the reports that Vale files with the U.S. Securities and Exchange Commission (SEC), the Brazilian Comissão de Valores Mobiliários (CVM) and, in particular, the factors discussed under "Forward-Looking Statements" and "Risk Factors" in Vale's annual report on Form 20-F.

8

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Vale S.A.
(Registrant)
By: /s/ Thiago Lofiego
Date: April 16, 2024 Director of Investor Relations

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Vale SA published this content on 17 April 2024 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 17 April 2024 10:03:29 UTC.