International Sulphur

What International Sulphur does

International Sulphur, Inc. is a privately held industrial sulphur processor and supplier headquartered in Mount Pleasant, Texas. Founded in 1974, the company operates a single processing facility co-located with regional gas production and mining sites that serve as its crude sulphur feedstock source. It manufactures industrial grades of sulphur through grinding, blending, classifying, flaking, and emulsifying of recovered or frasch (organic) sulphur to customer specifications, and sells into four industrial verticals: Rubber, Paper, Agricultural, and Utility. The company also markets agricultural sulphur for soil conditioning, pH control, nitrogen utility, and fungus/insect control in crop applications.

The company has been ISO 9001:2008 certified since 1994 through SGS International Certification Services and operates under a Total Quality Management Program that uses statistical quality control and delivery scheduling/tracking systems to support Just-in-Time inventory replenishment for customers. Headcount is reported in the 11-50 range, and the company describes itself as a primary force in both domestic and export industrial sulphur markets. No public financials, no disclosed customer logos, no patents, no partnerships, no subsidiaries, no funding rounds, and no management team details are present in the source material.

The business model is straightforward B2B industrial supply: quote-based pricing on custom specification orders, direct sales to enterprise buyers, and recurring contract relationships implied by the JIT-supported delivery model. Revenue is generated from one-time sales of processed sulphur products, with no licensing, subscription, or recurring software components. The company maintains no digital product surface beyond a basic corporate website and has no disclosed marketing channel mix, AI/ML capabilities, or technology partnerships.

Name

International Sulphur

Legal name

International Sulphur, Inc.

Website

https://internationalsulphur.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

11–50 employees

Short description

International Sulphur is a privately held industrial sulphur processor in Mount Pleasant, Texas, founded in 1974, that manufactures ground, blended, classified, flaked, and emulsified sulphur products to customer specifications for the Rubber, Paper, Agricultural, and Utility industries in domestic and export markets.

Ownership category

akta.pro rank

Product category

Industrial Sulphur Processing

NAICS

Other Basic Inorganic Chemical Manufacturing (325180), Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (3253)

SIC

Chemicals & Allied Products (2800)

akta.pro primary industry

Sulfur & Sulfuric Derivatives (IMAEAAAG)

akta.pro secondary industry

Soil Sulfur & Acidifying Amendments (Elemental Sulfur, Sulfates) (AFABADAG)

Keywords

• Industrial sulphur processing
• Sulphur manufacturing
• Agricultural sulphur supply
• Custom sulphur grinding
• Sulphur blending services

Headquarters

HQ city

Mount Pleasant

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Infrastructure, Technology or R&D

Revenue model

1. Industrial Sulphur Products: Manufacturing and supplying industrial grades of sulphur to Rubber, Paper, Agricultural and Utility industries. Products include agricultural sulphur for soil conditioning, pH control, fungicide/pesticide applications, and industrial sulphur for rubber, paper and utility applications. Revenue generated from sale of processed sulphur products to domestic and export markets.

Go-to-market motion1 record

Distribution channels1 record

Core offering

International Sulphur processes and supplies industrial grades of sulphur to the Rubber, Paper, Agricultural, and Utility industries. Production capabilities include grinding, blending, classifying, flaking, and emulsifying recovered or frasch (organic) sulphur to customer specifications, with a Total Quality Management Program and Just-in-Time inventory delivery systems supporting both domestic and export customers.

Product overview

International Sulphur, Inc. is a privately owned industrial sulphur processing and supply company with 50 years of experience. The company operates a single-product portfolio focused on processing and supplying high-quality industrial grades of sulphur. Their offerings include Industrial Sulphur Products (for Rubber, Paper, Agricultural, and Utility industries) and Agricultural Sulphur (for soil conditioning and crop protection). Production capabilities include grinding, blending, classifying, flaking, and emulsifying recovered or frasch (organic) sulphur to customer specifications, supported by a Total Quality Management Program with ISO 9001:2008 certification.

Differentiator

Problem solved

Functional benefit

Products and services

• Industrial Sulphur Products

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Scale indicators2 records

Recent moves3 records

Expansion highlights1 record

Broad incumbents

• Yara International: Global crop nutrition company producing nitrogen fertilizers and specialty plant nutrition products, including sulphur-coated and sulphur-containing formulations. Comparable in the agricultural sulphur application space but operates globally across the full fertilizer value chain.
• The Mosaic Company: Global fertilizer producer focused on phosphate and potash, with sulphur-containing fertilizer products such as ammonium sulphate. Comparable as a supplier of sulphur-bearing crop nutrition inputs but serves a much broader fertilizer mandate and operates globally at significantly greater scale.
• CF Industries Holdings: North America's largest nitrogen fertilizer producer, with by-product and related sulphur supply capabilities. Comparable as a large-scale sulphur-adjacent chemical producer serving agricultural and industrial customers, but focused primarily on nitrogen rather than sulphur as a primary product.
• Compass Minerals International: Producer of specialty plant nutrition products (including sulphate of potash) and industrial minerals. Comparable in addressing crop nutrition and industrial mineral markets but operates at much larger scale and with a broader mineral portfolio.
• Koch Ag & Energy Solutions: A major US producer and marketer of sulphur, fertilizers, and related agricultural inputs. Overlaps with International Sulphur across both industrial sulphur supply and agricultural sulphur applications, but operates at vastly greater scale and as part of Koch Industries' diversified chemical and energy portfolio.
• Nutrien Ltd: World's largest fertilizer producer, offering nitrogen, phosphate, potash, and sulphur-based products including ammonium sulphate. Comparable to International Sulphur's agricultural sulphur segment but competes across the full crop nutrient spectrum and at vastly greater scale and geographic reach.
• ICL Group: Israeli-headquartered specialty minerals and fertilizer company producing potash, phosphate, and specialty plant nutrition products including sulphur-based inputs. Comparable to International Sulphur's agricultural sulphur business while serving a far broader specialty fertilizer portfolio.

Direct peers

• Sulphur Mills Limited: India-headquartered global manufacturer of sulphur-based fungicides, micronutrients, and wettable sulphur products. Comparable as a sulphur-focused specialty processor selling custom formulations to agricultural and industrial customers across multiple geographies.
• Tiger-Sul Products: Specialty sulphur-based fertilizer and crop nutrition producer offering sulphur bentonite, micronized sulphur, and custom sulphur formulations. Directly comparable to International Sulphur's agricultural sulphur line, serving overlapping farmer and ag-input distributor customers with quote-based custom specification orders.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/international-sulphur-inc

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about International Sulphur