Every battery business owner knows: a 4% consumption tax is a heavy cost.On annual sales of ¥100 million, that’s ¥4 million in tax.But if your product is classified as an environmentally friendly battery, you can get full tax exemption — as long as you have a tax-accepted test report.

Recently, the Shaanxi tax authority sent expert teams to help companies understand exemption policies and standardize report filing.This sends a clear message:Tax benefits are real — but only if your report is 100% compliant.

In this guide, we explain:

• Which batteries qualify for tax exemption
• What makes a report legally valid for tax authorities
• How to choose a lab without risks
• Why so many battery makers trust Guangdong ESTL Technology Co., Ltd.

1. Policy Core: Which Batteries Qualify for Tax Exemption?

The policy comes from Caishui [2015] No.16 (Ministry of Finance & State Taxation Administration).Seven categories of environmentally friendly batteries are exempt from 4% consumption tax:

1. Mercury-free primary batteries
2. Nickel-metal hydride (Ni-MH) batteries
3. Lithium primary batteries
4. Lithium-ion batteries & lithium polymer batteries
5. Solar cells
6. Fuel cells
7. Vanadium flow batteries

If your product falls into any category above, you are eligible.Critical condition:You must provide a test report issued by a CMA-qualified laboratory.

2. What Report Does the Tax Bureau Actually Accept?

Only one type of report is legally valid for tax exemption:

✅ CMA Test Report

CMA = China Metrology Accreditation, required by law for government & tax purposes.

Rules the tax office strictly enforces:

1. The report MUST have the CMA stampWithout it, the tax bureau will reject your exemption application.

2. The lab must satisfy two conditions:

   • Valid CMA certificate issued by national/provincial market regulation authority
   • Battery testing items clearly listed in the CMA Annex(This is the most commonly missed point.)

You can verify credentials on the State Administration for Market Regulation official website.

3. How to Choose a Reliable Lab (3 Steps)

Step 1: Check 资质 — Verify CMA + Battery Scope

Ask for:

• CMA certificate
• CMA Annex (must include battery test items such as GB 31241)

Step 2: Check Expertise — Battery-Specialized

Battery testing involves electrochemistry, safety standards, and tax rules.Only labs with 10+ years of battery experience can ensure compliance.

Step 3: Check Service — Not “One-and-Done”

A good lab supports you beyond the report:

• Group testing by category (save cost)
• Assist with product list filing
• Provide rectification advice if testing fails
• Support tax inquiries

4. Why Choose Guangdong ESTL Technology Co., Ltd.?

Core Advantage 1: Full Valid CMA Qualification

• CMA certificate No.: CMA202019014977
• Battery testing clearly included in the CMA Annex
• Reports directly accepted by tax bureaus nationwide
• Also holds CNAS L13753, CBTL, UL TPTDP

Core Advantage 2: 13+ Years Focused on Batteries

• Serving battery industry since 2012
• 20,000+ clients
• 130+ countries
• Deeply familiar with Caishui [2015] No.16 and tax filing rules

Core Advantage 3: 30,000 ㎡ Lab & Advanced Equipment

High-precision instruments ensure accurate data and authoritative reports.

Core Advantage 4: Covers ALL 7 Exempt Battery Types

• Mercury-free batteries
• Ni-MH batteries
• Lithium primary batteries
• Lithium-ion batteries
• Solar cells
• Fuel cells
• Vanadium flow batteries

Core Advantage 5: Test by Category — Save Big Money

You do NOT need to test every model.ESTL helps you:

• Test one representative model
• Issue one CMA report
• File with a product list covering all similar models

Core Advantage 6: Full-Service from Sample to Tax Filing

• Pre-assessment: confirm eligibility
• Testing by national standards
• Assist with Product Detail List
• Direct support for tax filing
• Free rectification advice

5. Full Compliance Process

1. Self-evaluate if your battery is in the exempt list
2. Choose a CMA-qualified lab (e.g., ESTL)
3. Submit representative samples
4. Obtain CMA test report
5. File report + product list with tax bureau

6. FAQ

Q1: Must I test every model?

No. Test by category. One report + product list covers all similar models.

Q2: How long is the report valid?

No official expiry, but tax bureaus prefer reports within 1–2 years.

Q3: Do imported batteries need testing?

Yes. Imported batteries also require a Chinese CMA report for customs exemption.

Q4: Cost & lead time?

Depends on battery type. Typically:

• 3–6 weeks
• Transparent quotation after evaluation

Q5: How to verify lab credentials?

Check on the SAMR official website or request CMA certificate + Annex.

7. Conclusion: Choose Wisely, Save Millions

4% consumption tax is not a small expense.For ¥50 million annual sales, that’s ¥2 million per year.

The policy is clear:Eco-friendly batteries = tax exemption → requires a valid CMA report.

Guangdong ESTL Technology Co., Ltd. provides:

• Full CMA & CNAS qualifications
• 13+ years of battery expertise
• Transparent process
• Full support from testing to tax filing

If you need battery tax exemption testing, contact ESTL for a free professional evaluation.

Contact Information

Guangdong ESTL Technology Co., Ltd.
Contact: Ms. Li
Mobile/WeChat: +86 13925598091
Tel: +86 0769-85075888 ext. 6617
Email: net03@gtggroup.comAddress: 2nd Floor, Area B, Jinshengsheng Industrial Park,Zongbu 2nd Road, Songshan Lake High-Tech Zone,Dongguan, Guangdong, P.R. China
Website: www.gdestl.com