
Manufacturer of chemical intermediates: aromatic amines, phenol intermediates, adhesive resins and precursors for advanced materials.

Amino-Chem (Zhejiang Amino-Chem Co., Ltd.)
Shangyu (Zhejiang, CN) · Shanghai (CN) · Essen (DE) · Houston (US)New on Amplifa
About Amino-Chem
Founded in 2002, Amino-Chem is a subsidiary of Zhejiang Longsheng Group based in the Hangzhou Bay Shangyu Economic and Technological Development Area, Zhejiang Province, China. The company manufactures aromatic amines, phenolic intermediates and related resin products, including m-, o- and p-phenylenediamine, resorcinol, m-aminophenol, 2,4-dinitrochlorobenzene, 3-amino-4-methoxy-acetanilide, ammonium sulfate as well as modified resorcinol-formaldehyde resins (AN220, AN2101, AN2102). The core processes include continuous nitration, continuous and batch catalytic liquid-phase hydrogenation at low pressure, high-pressure hydrolysis and rectification, controlled via DCS-controlled processes and plants. Through a trading portfolio, intermediates for paints, pigments, agrochemicals and advanced materials (including DCDPS, 4,4-DDS, TPP, BMI, NPMI, DMAC) are also offered. The group consists of seven subsidiaries with production sites in Zhejiang as well as offices in Shanghai, Essen (Intertie GmbH) and Houston. Amino-Chem employs more than 1000 staff and supplies customers in the paints and pigment industry, agrochemicals, pharmaceuticals, the rubber/tire industry and engineering polymers worldwide.
- Site
- Shangyu (Hangzhou Bay Shangyu Economic & Technological Development Area)
- Processes
- Continuous Nitration, Continuous Catalytic Hydrogenation, Batch Catalytic Hydrogenation, High Pressure Hydrolysis (High-pressure hydrolysis, resorcinol from m-PDA), Rectification (Rectification/distillation), DCS-controlled chemical production (DCS-controlled process engineering), Resin synthesis (Synthesis of modified resorcinol-formaldehyde resins / precondensates), Quality assurance / laboratory analytics (HPLC, QA/QC laboratory)
- Materials
- m-Phenylene Diamine (m-PDA), o-Phenylene Diamine (o-PDA), p-Phenylene Diamine (p-PDA), Resorcinol, m-Aminophenol (MAP), 2,4-Dinitrochlorobenzene, m-PDSA Sodium Salt (m-Phenylenediamine-4-sulfonic acid sodium salt), m-PDSA Free Acid (m-Phenylenediamine-4-sulfonic acid)
- Certificates
- ISO 9001:2015 (GB/T 19001-2016), ISO 14001:2015 (GB/T 24001-2016), ISO 9001:2015, ISO 14001:2015, AEO certificate
- Founded
- 2002
- Employees
- >1000
- Industries
- Chemical intermediates, Paints and pigments, Agrochemicals, Pharmaceuticals, Rubber/tires (adhesion resins), Advanced Materials / Engineering Polymers (Aramid, PEI, Polyimides, RO
- 01
Research & Development (R&D Center)
- 02
Continuous Nitration
- 03
Catalytic Hydrogenation (continuous/batch)
- 04
High-Pressure Hydrolysis
- 05
Rectification
- 06
Resin Synthesis
- 07
Quality Assurance / Laboratory Testing
- 08
Supply Chain / Logistics
- 09
Sales via Subsidiaries
Products & Processes
m-Phenylenediamine (CAS 108-45-2)
Intermediate for resorcinol, meta-aramid fibers, PEI, paints, RO membranes, epoxy resins and polyurea.
o-Phenylenediamine (CAS 95-54-5)
Intermediate for pharmaceuticals, pesticides, corrosion protection agents and dyes.
p-Phenylenediamine (CAS 106-50-3)
Intermediate for engineering polymers, para-aramid fibers and polyimides.
Resorcinol (CAS 108-46-3)
Raw material for rubber chemicals, agrochemicals, UV absorbers, pharmaceuticals and dyes.
m-Aminophenol (CAS 591-27-5)
Key intermediate for thermosensitive/pressure-sensitive dyes, agro- and pharmaceutical chemistry.
2,4-Dinitrochlorobenzene (CAS 97-00-7)
Intermediate for sulfur, disperse and reactive dyes as well as pharmaceuticals.
Resorcinol-Formaldehyde Resins (AN220, AN2101, AN2102)
Adhesion promoters for bonding rubber to fibers and steel cord in tires and conveyor belts.
3-Amino-4-methoxy-Acetanilide (CAS 6375-47-9)
Important raw material for the production of disperse dyes.
Intermediates for Advanced Materials (DCDPS, 4,4-DDS, TPP, BMI, NPMI and others)
Trading products for aramids, polyimides, epoxy systems and engineering polymers.
Hydrogen
In-house produced gas according to ISO certificate, used in catalytic hydrogenation.
Sites

Shangyu (Zhejiang Amino-Chem)
CNProduction technology and personnel, No.15 Weisan Road, Hangzhou Bay Shangyu EDA
- Materials
- m-Phenylenediamine, Hydrogen
- DCS-controlled processes
- Continuous nitration
- Catalytic hydrogenation
- Laboratory with 115 instruments (450 m²)

Shangyu (Zhejiang Hongsheng Chemical)
CNProduction, Weisan Road
- Materials
- Resorcinol, m-/o-/p-phenylenediamine, 3-Amino-4-methoxy-acetanilide
- DCS-controlled processes
- Laboratory with 67 instruments (600 m²)
Shanghai (Pudong)
CNSales and marketing (Shanghai Amino-Chem Co., Ltd.)
Essen
DEEU office (Intertie GmbH)
Houston
USUS office (Amino-Chem US)
Products



Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Continuous NitrationCasting | – | – | – | – | – |
| Continuous Catalytic HydrogenationCasting | – | – | – | – | – |
| Batch Catalytic HydrogenationCasting | – | – | – | – | – |
| High Pressure Hydrolysis (High-pressure hydrolysis, resorcinol from m-PDA)Casting | – | – | – | – | – |
| Rectification (Rectification/distillation)Casting | – | – | – | – | – |
| DCS-controlled chemical production (DCS-controlled process engineering)Assembly | – | – | – | – | – |
| Resin synthesis (Synthesis of modified resorcinol-formaldehyde resins / precondensates)Casting | – | – | – | – | – |
| Quality assurance / laboratory analytics (HPLC, QA/QC laboratory)Testing | – | – | – | – | – |
| R&D Center (Research & Development)Engineering | – | – | – | – | – |
| Trading of chemical intermediatesAssembly | – | – | – | – | – |
Additional services
Quality
Amino-Chem operates according to ISO 9001:2015 and ISO 14001:2015 (DNV GL, certificates 2021–2024) and holds an AEO certificate. More than 40 internal ISO auditors carry out at least one internal QMS audit annually; the laboratories in Zhejiang have 182 QC/QA staff and HPLC analytics.
| Evidence | Zhejiang Amino-Chem | Zhejiang Hongsheng | Shanghai Amino-Chem |
|---|---|---|---|
| ISO 9001:2015 | |||
| ISO 14001:2015 | |||
| AEO certificate |
History
- 2002
Foundation of Amino-Chem as a subsidiary of Zhejiang Longsheng Group
- 2003
Improvement of batch catalytic hydrogenation by the Longsheng Group and achievement of continuous catalytic hydrogenation of mixed dinitrobenzene
- 2018
Initial certification according to ISO 9001:2015 and ISO 14001:2015 (DNV GL, 12.01.2018)