Florida Operations
Hillsborough County

For more than a century, The Mosaic Company’s Riverview facility has grown alongside Hillsborough County. Our success depends on the strength of Hillsborough County and the communities we call home, where more than 1,000 Mosaic employees live and work each day. That’s why we invested more than $6.4 million over the last five years in partners who strengthened the community, fought hunger, protected wildlife, and expanded education.

Community Impact

$6.4M

Total Community Investment (2021–2025)

$691.5K

Feeding Tampa Bay

$534.8K

Hillsborough Education Foundation

$488K

Florida State Fair

$359K

United Food Bank of
Plant City

$307.5K

ZooTampa

$281K

Metropolitan Ministries

$211K

University of South Florida

$136K

Progress Village (various organizations)

Mosaic-Sponsored Community Projects

Spoto High School Career Source Center
Florida Waters Manatee Rescue Campaign Exhibit at ZooTampa
United Food Bank of Plant City's Refrigerated Truck / Senior Program
The Florida Aquarium's Sea Lion Exhibit
National Audubon Society's Protecting Coastal Birds and Communities
Tampa Bay Watch's Water Quality Improvements & Oyster Restoration

Mosaic Employee Giving Program

3,500+

Since 2021, more than 200 employees have volunteered over 3,500 hours and contributed to 52 causes in Hillsborough County through Mosaic’s Employee Giving Program.

Fighting Hunger

We know fighting hunger begins right here at home. In Hillsborough County, over 17% of children are food insecure with 68% eligible for federal nutrition programs. Since 2021, Mosaic has invested more than $1.6M in causes that help food insecurity for hungry families across Tampa Bay.

+780K

Meals provided through our Tackling Hunger partnership with the Tampa Bay Buccaneers

$1.2M

Total donations since 2013 through our Goals for Food Partnership with the Tampa Bay Lightning

$186K

Total spent with Tampa Bay Rays Runs for Food / Meals on Wheels partnership

Mosaic Food Pantries in Hillsborough County

USF Mosaic Feed-A-Bull Pantry
Lamb Elementary School
Gibsonton Elementary School
The Foodtique of Progress Village
Pinecrest Elementary School
Broward Elementary School
Robinson Elementary / Turkey Creek Middle School

Riverview
East Stack
Extension Permit

Mosaic owns the Riverview Manufacturing Plant, which converts phosphate rock into crop nutrients and has been operating since 1924. In 2025, the federal government designated phosphate as a critical mineral due to its role in food and national security. Riverview alone produces ~18% of phosphate fertilizer used in the North American market.

Since 1989, the EPA requires phosphogypsum, a manufacturing byproduct, to be stored in engineered phosphogypsum stacks or "gypstacks." Mosaic's East Stack at Riverview is expected to become full in 2030. The Riverview East Stack Extension permit will provide the storage needed to safely support operations to 2046.

Mosaic will minimize new land use by building nearly half of the extension on the East Stack's shoulder. The extension is on the west side of the East Stack — opposite of neighboring homes.

What the Permit Will Do

Protects local jobs
Extends the existing stack by 178.5 acres right next to the current East Stack and opposite nearby neighborhoods
Includes permanent protection for 344 acres of shoreline and coastal habitats
Repurposes industrial land, including former auto junkyards

Learn more about the permit

Bird & Sunken island

As part of the Riverview East Stack Extension Permit, Mosaic is protecting local wildlife and coastlines on Tampa Bay. The permit will be paired with significant environmental commitments. These include:

344-Acre Coastline Conservation Easement

Mosaic will record a permanent conservation easement on Mosaic-owned land. These protections ensure NO future development can ever happen. Includes 344 acres of mangroves, salterns and upland hardwood forest.

Bird & Sunken Islands Preservation

Mosaic seeks permanent Natural Preservation Designation for the portion of Bird & Sunken Islands owned by Mosaic, providing nesting habitats for thousands of birds, and managed for over 20 years in partnership with Audubon Florida.

Support Through Sea Water

$3.6 Million

For +30 years, Mosaic has invested $3.6 million in Florida Aquarium’s growth, education and conservation programs. This includes an ongoing donation of natural sea water that supports +20,000 animals while reducing both costs and environmental impact for the Aquarium.

Since 2004, Mosaic has delivered 300,000 gallons of sea water 9-10 times per year, totaling more than 57 million gallons and saving the Aquarium an estimated $34.2 million.

Economic Impact in Hillsborough County 2025

As one of Tampa Bay’s largest Fortune 500 employers, Mosaic contributed more than $150 million in annual wages and supported over $649 million in contractor earnings in 2025.

1,065

Employees who call Hillsborough County home

280

Employees who live in Hillsborough and work daily at our Riverview Manufacturing Plant

$149.5M

Employee Salaries & Wages

$649M

Total Local Contractor Spend

Taxes Paid

$38.2M

Payroll Taxes for Hillsborough County Employees

Ad Valorem

$4.4M Real Property | $6.4M Tangible

Capital Expenditures

$86.8M

Annual Capital Spending Supporting Local Jobs and Infrastructure

The Significant Upland Wildlife Habitat Project

+4,300-Acre Oasis

Over 4,300 acres have been reclaimed in Hillsborough County through the Significant Upland Wildlife Habitat Project.

The Port of
Tampa Bay

A longtime operator at Port Tampa Bay, Mosaic also helped drive regional maritime commerce, generating a $1 billion impact through the transport of more than 7.76 million tons of materials.

50+ Years

Mosaic’s Port of Tampa Bay presence dates to the 1970s

$1B

Total supply chain and raw material purchases

7.76M

Total tons transported as raw materials, phosphate rock and finished fertilizer

Florida Operations Hillsborough County