What is the packaging format for shipping?

The standard transport package is 25kg/bag, but we also offer 900kg/bag and 1000kg/bag options.

Where is the product manufactured and shipped from?

The product originates from China, specifically Tangshan, Hebei, and is shipped from Tianjin Port or Qingdao Port.

25 Kgs Cooper Mining 70% High Quality Soduim Hydrosulphide Yellow Flake

Name: 25 Kgs Cooper Mining 70% High Quality Soduim Hydrosulphide Yellow Flake
Brand: Tangshan Fengshi Chemical Co., Ltd.
SKU: 2100779142

Hebei, ChinaTangshan Fengshi Chemical Co., Ltd.

Negotiable

50 kg

Sample price:US$120.00/bag.Request sample

Product profile

Customization

Available

CAS No.

16721-80-5

Formula

Nahs

Model NO.

CAS 16721-80-5

EINECS

16721-80-5

Appearance

Flake

Classification

Certification

CCIC, ISO

Purity

50%~80%

Type

Sodium Hydrosulfide

Grade Standard

Industrial Grade

Usage

Copper Mining

Transport Package

Customized Package

Specification

50kg, 900kg, 1000kg

Trademark

Fengshi Chemical

Origin

Tangshan

HS Code

2830109000

Production Capacity

680000 Ton/ Year

Key features

Certified Quality: Certified by CCIC and ISO, compliant with ISO9001/45001/14001 standards.

Large Capacity Supply: Annual production capacity of 68,000 tons ensures stable supply.

Flexible Customization: Supports OEM, ODM, and full customization from samples or designs.

Versatile Packaging: Available in 25kg/bag, 900kg/bag, or 1000kg/bag options.

Established Manufacturer: 14 years of export experience with professional QA/QC team.

Traceable Materials: Full traceability of raw materials ensures product consistency.

Global Logistics: Ships from Tianjin or Qingdao ports via FOB, CIF, CFR, or EXW.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceMulti-language Pioneer

Tangshan Fengshi Chemical Co., Ltd.

Hebei, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 Years CertifiedNearest Port: Tianjin Port, Qingdao PortAverage Response Time: ≤3.47h

AI-Powered supplier vetting

SummaryThe supplier is a chemical manufacturer and seller focused on sodium hydrosulfide and sodium sulfide, with additional logistics and general goods sales activities. It reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications, raw-material traceability, documented corrective-action and complaint-handling procedures, and inventory capability. Production-related evidence includes a sodium hydrosulfide production line, stated stable product quality, and one-month average lead times in both peak and off-season periods. However, the supplier is not identified as a professional technical supplier, does not provide 3D software design or SDK services, lacks a valid manufacturing-capacity contract with related subcontractors, and has no overseas warehouse, showroom, agent, branch, or offline trade-show record. Financial information is insufficient for a credibility judgment, and no specific customer names or verifiable customer cases are provided.

Supplier typeThe supplier is explicitly described as not being a professional technical supplier and operates primarily in the production and sale of sodium hydrosulfide and sodium sulfide, with related transportation and trading activities. The identified combined facility is a sodium hydrosulfide production line, indicating a chemical manufacturing profile rather than a technical-service profile.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications. These stated certifications provide explicit evidence of quality, occupational health and safety, and environmental management systems.

After-Sales capabilityThe supplier has a documented customer-complaint handling procedure with followed records, inventory capability, defined payment and quotation terms, and stated one-month average lead times. However, it has no overseas warehouse, showroom, agent, branch, or overseas-service coverage, so the available evidence supports basic service processes but not broad overseas after-sales support.

R&D capabilityThe supplier does not provide 3D software design services, has no available SDK, and is not identified as a professional technical supplier. It also reports no AI model for big-data decision support and no CRM or SAP sustainable-development capability, which does not support a strong innovation assessment.

Production capacityThe supplier lists production and sales of sodium hydrosulfide and sodium sulfide, identifies a sodium hydrosulfide production line, maintains inventory capability, reports one-month average lead times in both peak and off-season, and has raw-material traceability. These indicators support established production capability, although the absence of a valid manufacturing-capacity contract with related subcontractors is a documented limitation.

Customization capabilityThe supplier lists customization from samples, designs, full customization, minor customization, and flexible customization. This is explicit evidence of a broad stated customization offering, although no examples or technical details of customized chemical products are provided.

Product Q&A

Q:What certifications does the product have?

The product is certified by CCIC and ISO. The company also holds ISO9001:2015, ISO45001:2018, and ISO14001 management system certifications.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 500 kg.

Q:What are the available payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

Q:What is the lead time for production?

The average lead time is one month, regardless of peak or off-season.

Q:Can I customize the product specifications?

Yes, we offer OEM, ODM, and various customization options including full customization, minor customization, and flexible customization from samples or designs.