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INDUSTRY CLUSTER · Modern agriculture

Longnan Green Tea Chain

Longnan is one of Gansu's few concentrated tea areas, but the Longnan Green Tea mark does not cover every tea made in Wen, Kang and Wudu. The provincial IP office lists authorised GI-mark users, while the city places tea among seven specialty farm chains; this is not a national SME specialty-cluster award. Yuhuang was still buying and processing spring leaves in Wen County in 2026. Longshen runs a separate garden-to-sales business in Kang's Yangba area. Zhenyi Lanyue processes locally bought leaves at Yuhe in Wudu. Their purchases, manufacture and labelling must be checked separately, and their black or white teas must not be counted as green tea. For a spring-tea order, examine picking dates, fixing records, moisture, residue tests and GI-use permission, distinguishing total gardens from bearing gardens and actual sales.

Formation and regional foundations

Approved Gansu geographical-indication operators identifies Longnan Green Tea Chain, while firm activity still needs a separate check.

Longnan Green Tea Chain links traceable fresh leaves from Wen to graded GI-authorised Longnan green tea. The scale of green-tea garden management, leaf purchasing, fixing, rolling, drying and grading in Tea gardens and processing sites in Wen County, Kang County and southern Wudu District, Longnan does not establish any one firm's available inventory.

Core geography: Tea gardens and processing sites in Wen County, Kang County and southern Wudu District, Longnan

Operating-chain map in Tea gardens and processing sites in Wen County

Six supply-and-demand connections in Tea gardens and processing sites in Wen County

The links for Longnan Green Tea Chain show only a project-scoping sequence, moving from traceable fresh leaves from Wen toward delivery conditions.

  • traceable fresh leaves from Wen — Input review for Longnan Green Tea Chain centres on traceable fresh leaves from Wen and checks variety, health or provenance records, growing or husbandry conditions and input lots before work begins.
  • pick and accept leaves — Operations for Longnan Green Tea Chain follow pick and accept leaves and record field or husbandry stages, environmental conditions, handling results and responsibility records at each handoff.
  • graded GI-authorised Longnan green tea — Output scope for Longnan Green Tea Chain covers graded GI-authorised Longnan green tea, with variety, grade, freshness or live condition and inspection records defined separately.
  • tea distributors — Demand for Longnan Green Tea Chain comes from tea distributors, with specifications and delivery terms checked against growing, husbandry, processing, storage, transport or consumption conditions.
  • green-tea garden management acceptance criteria — Acceptance for Longnan Green Tea Chain follows green-tea garden management acceptance criteria, with measurement and retest results linked to a plot, house, water body or harvest lot.
  • green-tea garden management delivery arrangements — Delivery for Longnan Green Tea Chain follows green-tea garden management delivery arrangements and checks harvest or release time, temperature, packaging, health documents and arrival condition.

01 · Longnan Green Tea Chain: Inputs and inbound terms

This chapter reviews input mix and inbound conditions in Tea gardens and processing sites in Wen County.

Input mix: traceable fresh leaves from Wen, Kang and southern Wudu, process water and food-grade packs.

For traceable fresh leaves from Wen, check variety, health or provenance records, growing or husbandry conditions and input lots; retain samples and site records.

In Gansu, physical inputs such as traceable fresh leaves from Wen carry a lot trail through packaging, transport and traceability records, while sites, equipment or services retain their own reference numbers.

  • Before work in Tea gardens and processing sites in Wen County moves into execution, variety, health or provenance records, growing or husbandry conditions and input lots should be explicit.

02 · Longnan Green Tea Chain: Operations and handoffs

This chapter reviews production stages and engineering interfaces in Tea gardens and processing sites in Wen County.

Operating sequence: pick and accept leaves, wither, fix, roll, dry, sort and seal.

After a change to pick and accept leaves, reassess green-tea garden management acceptance criteria and update records for field or husbandry stages, environmental conditions, handling results and responsibility records.

Before pick and accept leaves in Gansu moves to graded GI-authorised Longnan green tea, use a limited trial, test harvest or stage result to confirm the output boundary.

  • Before work in Tea gardens and processing sites in Wen County moves into execution, equipment, software versions and accountable owners should be explicit.

03 · Longnan Green Tea Chain: Outputs and acceptance

This chapter reviews output forms and acceptance measures in Tea gardens and processing sites in Wen County.

Output range: graded GI-authorised Longnan green tea, with black and white tea kept separate.

Acceptance of graded GI-authorised Longnan green tea from pick and accept leaves in Gansu should specify reproducible samples, methods, environments and decision rules.

For Longnan Green Tea Chain, quotations for graded GI-authorised Longnan green tea to tea distributors should separate grade, packaging, labels and storage conditions.

  • Before work in Tea gardens and processing sites in Wen County moves into execution, specifications, test environments and delivery documents should be explicit.

04 · Longnan Green Tea Chain: Demand and purchasing

This chapter reviews demand side and purchasing routes in Tea gardens and processing sites in Wen County.

Demand side: tea distributors, teahouses, retailers and corporate-gift buyers.

In Gansu, demand from tea distributors can be separated by growing, husbandry, processing, storage, transport or consumption conditions, then matched to the conditions for graded GI-authorised Longnan green tea.

An inquiry for graded GI-authorised Longnan green tea in Longnan Green Tea Chain should state volume, acceptance and delivery terms for tea distributors.

  • Before work in Tea gardens and processing sites in Wen County moves into execution, use case, volume range and acceptance owner should be explicit.

05 · Longnan Green Tea Chain: Named entities

The three named entities in Tea gardens and processing sites in Wen County each link to their own public material.

More than 56,000 tea buds records Wenxian Yuhuang Tea Co., Ltd in the Longnan Green Tea Chain chain.

Fourth Lanzhou Tea Expo government-pavilion exhibitors records Gansu Longshen Tea Co., Ltd in the Longnan Green Tea Chain chain.

Yuhe tea growers and processor records Longnan Zhenyi Lanyue Tea Development Co., Ltd in the Longnan Green Tea Chain chain.

  • The three named entities in Tea gardens and processing sites in Wen County use only relationships directly stated in their own material.

06 · Longnan Green Tea Chain: Quality and records

This chapter reviews quality review and technical files in Tea gardens and processing sites in Wen County.

Check picking dates, plots, fixing, moisture, residues and labels, GI rights cannot be extended to other teas.

When operating conditions for pick and accept leaves in Gansu change, reassess green-tea garden management acceptance criteria and update field or husbandry stages, environmental conditions, handling results and responsibility records.

After release of graded GI-authorised Longnan green tea from pick and accept leaves in Gansu, set retesting, exception isolation and correction deadlines so responsibility remains traceable to a plot, house, water body or harvest lot.

  • Before work in Tea gardens and processing sites in Wen County moves into execution, samples, test conditions and decision rules should be explicit.

07 · Longnan Green Tea Chain: Delivery and site handover

This chapter reviews transport, delivery and site handover in Tea gardens and processing sites in Wen County.

Process fresh leaves promptly, and dispatch sealed finished tea away from light and moisture by grade and lot.

When delivery of graded GI-authorised Longnan green tea from pick and accept leaves in Gansu spans several traceable units or service stages, every deliverable should link back to its record.

Delivery of graded GI-authorised Longnan green tea to tea distributors in Gansu keeps packaging integrity, lot labels, storage temperature, transit time and arrival checks linked.

  • Before work in Tea gardens and processing sites in Wen County moves into execution, packaging, temperature, humidity, shock protection and arrival checks should be explicit.

08 · Longnan Green Tea Chain: Engagement and due diligence

This chapter reviews engagement sequence and due-diligence list in Tea gardens and processing sites in Wen County.

Longnan Green Tea Chain: Verify each firm's gardens, leaf contracts, processing permit, GI authorisation and sales.

When checking entities including Wenxian Yuhuang Tea Co., Ltd, cluster designation does not prove performance; before quoting graded GI-authorised Longnan green tea, assign responsibility for green-tea garden management acceptance criteria and green-tea garden management delivery arrangements.

In Gansu, an engagement for graded GI-authorised Longnan green tea from pick and accept leaves can begin with a small lot, pilot or stage deliverable before capacity, lead time and longer arrangements are set.

  • Before work in Tea gardens and processing sites in Wen County moves into execution, separate conclusions on regional designation and company capability should be explicit.

Sources and reading notes

Check the Longnan Green Tea Chain locality or product link separately from each firm's legal identity, products and permits; current Longnan Green Tea Chain records govern capacity, price and lead time.

  • Approved Gansu geographical-indication operators (2025) documents the locality or product behind Longnan Green Tea Chain.
  • The corresponding public record states this relationship for Wenxian Yuhuang Tea Co., Ltd: GI-user code 916212226654450558, a 2026 spring-tea report records continuing growing and leaf processing.
  • The corresponding public record states this relationship for Gansu Longshen Tea Co., Ltd: GI-user code 916212247396133315, an exhibitor profile and provincial trade directory establish the Yangba operation.
  • The corresponding public record states this relationship for Longnan Zhenyi Lanyue Tea Development Co., Ltd: GI-user code 91621200MA74GUTD3W, the national forestry agency reports its actual Yuhe processing work.

Related companies

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Sources

Use the original publishers to check dates, scope and definitions; public material is not a transaction guarantee.