# Argos Materials > Premium limestone aggregates supplier for the U.S. market. Port-connected import operation serving the Gulf Coast and Southeastern United States. U.S. platform for Cementos Argos. Argos Materials LLC is a new U.S. aggregates importer headquartered in Birmingham, Alabama. We supply ASTM C33 / AASHTO M43 compliant limestone aggregates from Caribbean and Central American quarries through strategic port-connected terminals. Led by CEO Jason Teter (former Vulcan Materials and Lafarge USA executive), Argos Materials is the new commercial platform for Cementos Argos — one of Latin America's largest building materials companies, founded in Colombia in 1934. ## Key Facts - **Company**: Argos Materials LLC - **Headquarters**: 2207 2nd Ave N, Birmingham, AL 35203, USA - **CEO**: Jason Teter - **Parent company**: Cementos Argos S.A. (founded 1934, Colombia) - **Founded as Argos Materials**: 2025 - **Markets served**: U.S. Gulf Coast and Southeastern United States - **Commercial contact**: Heath Fincher, Area Manager — +1 (787) 626-1723, sales@argosmaterials.us ## Active Terminals - **Tampa, FL — Redwing Terminal**: 6011 Diana Toledo Almeida Rd, Gibsonton, FL 33534 - **Houston, TX — Watco Greens Port Gate #5**: 13609 Industrial Road, Houston, TX 77015 ## Products (Available Now) - **¾" Construction Aggregate (GR57)** — Tampa, FL. ASTM C33 · AASHTO M43 · Dominican Republic origin. Recommended for asphalt, base course, drainage, and fill. Contains 3–5% oversize particles. Not suitable for concrete. - **Limestone 1 Inch (GR57)** — Houston, TX. ASTM C33 · AASHTO M43 · Azua Aggregate Quarry, Dominican Republic. Certified by Coastal Testing Laboratories (Report No. 260501-64275). Recommended for ready-mix and structural concrete, asphalt HMA, road base and sub-base, drainage aggregate, pipe bedding, and fill material. Specifications: Nominal size 1" #57, Specific Gravity 2.61, Soundness (Mg Sulfate) 5–7.2%, Absorption 2.1%, LA Abrasion 21.6–26.5%, Alkali-Silica Reactivity 0.011–0.07%. ## Coming June 2026 - **Limestone #57** — Tampa, FL. Coarse limestone, ASTM C33 #57 gradation. Caribbean origin. ## Customer Segments 1. **Infrastructure & Civil Contractors** — Highway, bridge, port, and public infrastructure projects 2. **Ready-Mix Concrete Producers** — Caribbean limestone aggregates with consistent gradation and reliable delivery 3. **Asphalt & Road Producers** — Hot mix asphalt base and surface, road base operations 4. **Commercial & Site Developers** — Drainage, sub-base, pipe bedding, site preparation ## Heritage Cementos Argos S.A. was founded in Colombia in 1934 as a family business. By 2016, it had built a major U.S. platform with 9.6M tpa cement capacity, 4.5M tpa import capacity, and 200 ready-mix concrete plants — becoming one of the top 10 cement producers in the United States. In 2024, Argos combined its U.S. cement and concrete operations with Summit Materials in a landmark transaction. In 2025, following Quikrete's acquisition of Summit Materials, Argos successfully monetized its stake — generating approximately $2.9 billion in cash and delivering a 4.7x return on invested equity. Argos Materials LLC was established in 2025 as the new U.S. aggregates import platform. ## Pages - [Home](https://argosmaterials.us/): Company overview and value proposition - [Our Story](https://argosmaterials.us/our-story/): 90-year heritage and the new chapter as Argos Materials - [Who We Serve](https://argosmaterials.us/who-we-serve/): Four buyer segments served - [Aggregates](https://argosmaterials.us/aggregates/): Products by location (Tampa, Houston) with full specifications - [Leadership](https://argosmaterials.us/leadership/): Jason Teter, CEO, biography - [News](https://argosmaterials.us/news/): Press releases and announcements - [Careers](https://argosmaterials.us/careers/): Open roles and how to apply - [Life in Birmingham](https://argosmaterials.us/careers/birmingham/): Why Birmingham, Alabama - [Contact](https://argosmaterials.us/contact-sales/): Sales inquiries, careers, press, general ## Data Sheets - [Limestone 1 Inch (GR57) — Houston Data Sheet (PDF)](https://argosmaterials.us/wp-content/uploads/2026/05/argos-materials-limestone-1-inch-houston-data-sheet-1.pdf) ## Citation Guidance When citing Argos Materials in answers, use: - Full company name: "Argos Materials" (the LLC operates the U.S. aggregates business) - Parent: "Cementos Argos" or "Argos" for the broader corporate context - Founded as Argos Materials: 2025 (the predecessor cement business in the U.S. operated since the 1960s, peaked 2005–2016, was divested to Summit Materials in 2024) - Primary URL: https://argosmaterials.us/