What Sorbtech International, LLC. does

Nanjing Tianhua Technology Development Co., Ltd., operating in English as Sorbtech International, LLC., is a privately held Chinese high-tech enterprise founded in 1992 and headquartered in Nanjing, Jiangsu Province. It is one of the first Chinese firms engaged in preservation and sealed-storage research, and it holds multiple invention patents covering its proprietary "504" dual-absorber chemistry, which it describes as having independent intellectual property that changed the traditional deoxidation reaction principle. The 16-employee company operates an R&D, production, and sales model integrated under one entity.

Its core offering is the 504 brand of oxygen-and-carbon-dioxide dual-absorber sachets for use inside sealed packaging. The product line spans general-purpose 504A variants (including chain-linked and indicator-integrated versions), 504C (drying-type, combining gas and moisture absorption), 504D (modified-atmosphere type formulated for fresh-cut fruits and vegetables), 504E (non-iron/replacement type that releases CO2 and prevents container collapse), a natural-mineral 504 desiccant for industrial moisture control, and the 504 Big Eye oxygen indicator — a color-change card that turns red when sealed-package oxygen is within spec and blue when quality may be compromised. Together these target three use-case segments: food processing and shelf-life extension (primary), fruit and vegetable preservation, and industrial moisture/rust prevention for electronics, precision instruments, cultural artifacts, and apparel.

The company runs a direct-to-customer go-to-market with no disclosed distributor or marketplace channel: its official bilingual websites (th504.com and oxyfree.com) host a product catalog, and orders are taken via a customer service hotline (025-84877262) and email under contact representative Mr. Zhou. No pricing, revenue, named customers, external investors, or management team details are publicly disclosed.

Name

Sorbtech International, LLC.

Legal name

南京天华科技开发有限责任公司

Website

https://th504.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Nanjing Tianhua Technology Development Co., Ltd. (Sorbtech International, LLC.) is a privately held, 16-employee Chinese high-tech firm, founded 1992 and headquartered in Nanjing, that develops and sells the 504 brand of dual oxygen-carbon dioxide absorbers, desiccants, and oxygen indicators used by food processors, fresh-produce handlers, and industrial users for sealed-package preservation.

Ownership category

akta.pro rank

Product category

Food Preservation Materials

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Miscellaneous Chemical Products (2890)

akta.pro primary industry

Mercury & Sulfur Removal Sorbents (Oil & Gas) (IMAEAIAJ)

Keywords

• Oxygen absorber products
• Food preservation solutions
• Sealed packaging materials
• Industrial desiccant products
• Moisture control technology

Headquarters

HQ city

Nanjing

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. 504牌保鲜封存产品销售 (504 Preservation & Sealed Storage Product Sales): Company generates revenue through direct sale of its 504 brand product line including dual-absorbers (504A, 504C, 504D, 504E), desiccants, and oxygen indicators. As a high-tech enterprise integrating R&D, production, and sales, the company sells to food processors, agricultural product handlers, and industrial users domestically and internationally. Revenue model is product-based with one-time and recurring purchase dynamics driven by customer usage volumes.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Sorbtech International, LLC. (operating under the Chinese legal name 南京天华科技开发有限责任公司) manufactures and sells the proprietary 504 brand series of dual absorbers (双吸剂) that simultaneously remove oxygen and carbon dioxide in sealed containers for food preservation and shelf-life extension. The company also produces oxygen indicators (visual color-change indicators), moisture-absorbing desiccants, and gas-adjustment formulations for fresh produce, packaged foods, and industrial applications. It operates as a high-tech enterprise integrating R&D, production, and sales of green preservation products.

Product overview

Nanjing Tianhua Technology Development Co., Ltd. is a high-tech enterprise specializing in preservation and sealing technology. The company offers the 504 series of dual absorbers (双吸剂), which are oxygen and carbon dioxide absorbing products that change the traditional deoxidizer reaction principle. The product portfolio includes: 504A general-purpose dual absorber for general applications; 504A chain type for chain-linked packaging; 504A indicator type and 504A chain indicator type with built-in oxygen detection; 504C drying type combining dual absorption with moisture control; 504D gas adjustment type for fruits and vegetables; 504E replacement type for non-iron-based applications releasing CO2; 504 desiccant for moisture control; and 504 Big Eye oxygen indicator for visual packaging status monitoring. These products work together to provide comprehensive food preservation solutions across various industries including snacks, fresh produce, and industrial applications.

Differentiator

Problem solved

Functional benefit

Brands

• 504: 504牌双吸剂 - the company's proprietary oxygen absorber product line that has changed traditional deoxidation principles and achieved international advanced levels

Products and services

• 504A General Dual Absorber (504A通用型双吸剂)

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Market position

Weaknesses4 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sorbtech-international-llc-

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Sorbtech International, LLC.