How to Find Factory Customers for Industrial Dust Collection and VOC Abatement Equipment Sales: 82,000 Factories in VOCs-Related Industries, More Than Half in Guangdong, Zhejiang, and Jiangsu

A-Bin sells VOC abatement equipment and dust collectors in Changzhou. Last year he set his sights on a hardware-parts spraying factory, made several trips, and designed an adsorption-plus-catalytic-combustion system sized for the exhaust from solvent-based paint. He handed the proposal to the owner, who told him the spray line would switch to water-based paint the following month — the exhaust's concentration and composition would both change, so the proposal had to be scrapped and redone from scratch. What bothered him even more was the long list of leads on his desk: which factory had a spray line, which had a grinding station, which had already switched materials — none of it was known before he picked up the phone.

First Split Into Two Piles: Organic Exhaust and Dust

VOC abatement equipment and dust collection equipment target two different groups of factories. Organic exhaust comes from paint, ink, glue, and solvents, and is generated in processes like spraying and drying, print lamination, glue application, rubber mixing and vulcanization, and the reaction and storage of chemical raw materials; dust is generated in casting's sand shakeout and grinding, cement and refractory materials' crushing and grinding, ceramics' raw-material preparation and polishing, and wood's sawing and sanding.

On Tianxia Gongchang, I picked a set of sub-industries for each of these two process types, with the threshold set at 20+ insured employees. The 10 VOCs-related sub-industries have 81,742 active factories in total:

The 8 dust-related sub-industries have 17,258 in total:

A factory can belong to more than one sub-industry, so the sum across sub-industries is slightly higher than the total.

Plastic products alone account for 34.5% of the VOCs pile. There's also a type of factory that belongs to both piles: wood furniture factories generate wood dust from cutting and sanding in the front-end process and organic exhaust from painting in the back-end process, so dust collectors and exhaust equipment can be pitched together.

How to Read the Policy: Two State Council Documents and One Guangdong Provincial Plan

The State Council's Action Plan for Continuous Improvement of Air Quality (Guofa [2023] No. 24), issued on December 7, 2023, has three parts that are useful for sales.

• Targets: by 2025, nationwide nitrogen oxide and VOCs emissions were to fall by more than 10% each from 2020 levels; PM2.5 concentrations in the Beijing-Tianjin-Hebei region and surrounding areas, and in the Fenwei Plain, were to fall by 20% and 15% respectively, with PM2.5 concentrations in the Yangtze River Delta meeting standards overall.
• Source substitution: strictly control construction projects that produce or use high-VOCs-content paint, ink, adhesives, and cleaning agents, and step up the substitution of low- (or zero-) VOCs-content raw and auxiliary materials in industrial coating, packaging and printing, and electronics. The document names these three sectors specifically; furniture and footwear are not among them. Matching this to the process-based lists (this mapping is mine — the document doesn't spell out these industries): among auto parts, complete vehicles, metal surface treatment, and wood furniture, the factories with coating lines correspond to industrial coating; printing factories correspond to packaging and printing; footwear factories use adhesives.
• Full-process control: encourages the use of low-leakage breather valves and emergency pressure-relief valves on storage tanks, along with regular seal-tightness testing. This point is more relevant to chemical raw-material factories and paint/ink factories.

The 2025 target year has already passed. The State Council's Plan for Building a Beautiful China During the 15th Five-Year Plan Period (Guofa [2026] No. 20), issued on July 3, 2026, also includes VOCs-related measures: studying and revising mandatory national standards on VOCs content limits for key products, advancing VOCs source substitution and full-process control, and carrying out upgrades to traditional air-pollutant-emitting industrial clusters; it also proposes piloting a VOCs environmental protection tax.

Guangdong is not among the three key regions designated at the national level. The Guangdong Provincial People's Government's Guangdong Action Plan for Continuous Improvement of Air Quality (Yuefu [2024] No. 85), issued on December 10, 2024, implements the national plan and designates its own key regions within the province, likewise calling for stepping up the substitution of low- (or zero-) VOCs-content raw and auxiliary materials in industrial coating, packaging and printing, and electronics.

Two reminders for sales. First, source substitution comes before end-of-pipe treatment: once a factory switches to water-based paint or low-VOCs ink, the exhaust's concentration and composition both change, and equipment selection has to change with it — this is exactly what tripped up A-Bin. Second, "industrial cluster upgrades" target whole clusters of factories at once, which lines up well with sweeping lists city by city and industry by industry.

The Provinces and Cities in the Key Regions

The three key regions are defined at the prefecture-city level: Beijing-Tianjin-Hebei and surrounding areas covers Beijing, Tianjin, and parts of Hebei, Shandong, and Henan provinces; the Yangtze River Delta covers Shanghai, all of Jiangsu, 6 cities in Zhejiang (Hangzhou, Ningbo, Jiaxing, Huzhou, Shaoxing, and Zhoushan), and 11 cities in Anhui; the Fenwei Plain covers 8 cities in Shanxi, 5 cities in Shaanxi, plus the Yangling Demonstration Zone and Hancheng city.

The table below gives province-wide totals. Only Beijing, Tianjin, Shanghai, and Jiangsu are covered in full; the other provinces are only partially covered, so the figures in the table can't be added up to get "how many factories are in the key regions."

• All of Jiangsu is within scope: Suzhou has 3,763, Wuxi has 1,682, and Changzhou has 1,351 — all three rank among the top 15 cities nationwide for VOCs-related factory counts.
• For Zhejiang, check down to the city level: among Ningbo, Wenzhou, and Taizhou — all three in the national top 15 — only Ningbo is on the key-region list. Wenzhou has 2,693 and Taizhou has 2,290, together accounting for 37.3% of the province's total. Before heading to these two cities, check what documents the local government has issued.
• In Shanxi, dust-related factories outnumber VOCs-related ones: among all 31 provinces, autonomous regions, and municipalities nationwide, only Shanxi and Tibet show this pattern.

Now look at Guangdong, which isn't in a key region: it has 18,311 VOCs-related factories, 22.4% of the national total. Six of its cities — Dongguan, Shenzhen, Foshan, Guangzhou, Huizhou, and Zhongshan — make the national top 15, totaling 14,935, or 81.6% of the province's total; Dongguan alone has 5,557, the most of any city in the country.

The two lists differ greatly in how concentrated they are. The top 15 cities for VOCs-related factories account for 44.0% of the national total; the top 15 cities for dust-related factories account for only 26.6%, and even the top city, Dongguan, has just 608. Quanzhou (427), Chaozhou (380), Zibo (249), and Yingkou (233) don't appear in the VOCs top 15 at all, but all four make the dust-related top 15. When selling dust collection equipment, break down a city's list by sub-industry first to see whether it's casting, ceramics, or building materials holding up the numbers, then decide which case studies to bring along.

Four Things to Nail Down on the First Call

1. What materials they use, and whether a switch is planned

Whether the paint, ink, or glue is solvent-based, or a low-VOCs type like water-based, powder, or UV-curable, determines the exhaust concentration and how the equipment is configured. For a factory that's about to switch materials, wait until the new-material plan is finalized before drafting an equipment proposal — otherwise you end up redoing everything like A-Bin did.

2. Which processes generate exhaust or dust, and what's currently installed

Find out how many spray lines, drying rooms, printing presses, and grinding stations there are, what equipment is currently in place, how many years it's been in use, and how often consumables need replacing. When old equipment is due for replacement, or consumable costs are hurting, that's your opening.

3. How many shifts, and how many hours a day

Airflow capacity is sized to the production line, and operating cost is a function of running hours. Factories running two or three shifts continuously face a big bill for electricity and consumables, making an energy-saving proposal an easier sell; factories running a single day shift are more sensitive to the upfront investment.

4. Who makes the call, and how the payment works

At a factory with a few dozen insured employees, the owner decides alone; at one with a few hundred, the request usually originates with the safety-and-environment or equipment department before going through procurement — see Methodology Lesson 6, Who Actually Makes the Call at a Factory. If a factory can't pay for the equipment in one lump sum, you can discuss leasing or installments — see this series' How to Find Factory Customers for Equipment Finance Leasing and Equipment Loan Sales.

A Sequence You Can Run Right Away

1. Split into two piles first: for VOCs equipment, pull lists from the 10 sub-industries above; for dust collection equipment, pull lists from the 8 sub-industries; put wood furniture factories in both.
2. Then mark out the regions: start with places like Jiangsu and Shanghai that are covered in full within the key regions, then check the other provinces city by city; for Guangdong, follow the provincial plan and sweep the six Pearl River Delta cities as a block.
3. Pull the lists on Tianxia Gongchang: start with the 50+ insured-employee tier. For example, Dongguan factories with 50+ insured employees in the 10 VOCs-related sub-industries from the table above correspond to this list; Quanzhou factories with 50+ insured employees in the 8 dust-related sub-industries from the table above correspond to this list. After working through those, widen the net to the 10–50 employee tier. Over 3 million factories on Tianxia Gongchang carry direct contact details for the owner or decision-maker; check "decision-maker contact details: yes" and what's left are factories where you can reach the person who makes the call directly.
4. Plan routes by city: for the VOCs list, route by industrial zone and visit several factories a day; the dust list is more scattered, so pick cities by industry first, then run them in a concentrated batch.
5. On the first call, ask only the four things: materials, processes and equipment, shifts, and who makes the call. Decide whether to visit and measure airflow only after that.

You can also just ask the AI on Tianxia Gongchang something like "Suzhou auto parts factories with 20+ insured employees," and it will break the conditions into filters and list the factories.

Other salespeople are working this same set of factories: the cement, glass, ceramics, refractory-materials, and casting factories on the dust list are also among the high-electricity-consumption industries picked out in How to Find Factory Customers for Commercial and Industrial Energy Storage Sales; spray lines and grinding stations can't run without compressed air — see this series' How to Find Factory Customers for Air Compressor and Compressed-Air Station Energy-Saving Retrofit Sales.

Pre-Visit Checklist

1. Does this factory belong to the VOCs pile, the dust pile, or both?
2. Is its city on the key-region list under Guofa [2023] No. 24? Check down to the prefecture-city level.
3. Is the paint, ink, or glue it uses solvent-based or low-VOCs? Any material-switch plans in the near term?
4. What's the current equipment, and how many years has it been in use? How many shifts does the line run, and how many hours a day?
5. Does the owner make the call, or the safety-and-environment or equipment department? Will the equipment be paid in full or in installments?

Once you have answers to all five, bring a proposal to the visit.

→ Filter Tianxia Gongchang for factories in the 18 VOCs- and dust-related sub-industries with 50+ insured employees | → Get a Tianxia Gongchang membership

Published by the Tianxia Gongchang Research Institute. Data note: factory counts are from Tianxia Gongchang, covering active-status manufacturing factories with 20+ insured employees, as of September 2026; policy content is from the State Council's Action Plan for Continuous Improvement of Air Quality (Guofa [2023] No. 24, issued December 7, 2023), the State Council's Plan for Building a Beautiful China During the 15th Five-Year Plan Period (Guofa [2026] No. 20, issued July 3, 2026), and the Guangdong Provincial People's Government's Guangdong Action Plan for Continuous Improvement of Air Quality (Yuefu [2024] No. 85, issued December 10, 2024).