ONT/ONU is an optical network terminal/unit used in FTTH, GPON or EPON access networks. It is commonly imported with a power adapter, LAN ports, optical ports and, in some models, integrated Wi‑Fi. If the shipment is declared only as “network equipment” or “optical modem” without clarifying function, transmission standard, model and radio configuration, Customs may request HS explanation, catalogue/datasheet, ICT conformity documents or labeling documents.

A minor mismatch among Invoice, Packing List, catalogue, original label, C/O and model list may cause document inspection, denial of preferential C/O treatment, DEM/DET costs or delay in telecom project deployment. This article provides an E2E (End-to-End) review map before ETA: HS code, taxes, specialized policy, customs documents, clearance process and risks to block before cargo arrival.

QUICK FACT

Review item	Application direction for ONT/ONU	Control note
Product name	ONT/ONU – optical network terminal/unit used for optical access networks.	Do not automatically apply this guide to router, access point, mesh, CPE or OLT.
Reference HS code	8517.62.59 or another code under heading 8517.62 depending on function, transmission/reception/conversion capability and technical documents.	Review catalogue, datasheet, port layout, GPON/EPON standard, Wi‑Fi function and commercial description.
Preferential MFN duty	Many data transmission/reception devices under 8517.62 are often checked at 0%, but the current tariff must be verified at declaration time.	Do not use an absolute duty rate before confirming the 8/10-digit HS code and current tariff.
VAT	Standard VAT is generally 10%; from 01 July 2025 to 31 December 2026, review VAT reduction policy and exclusion appendices.	Check Decree 174/2025/ND-CP and actual goods before applying 8%.
Specialized policy	May fall under ICT/telecom management, conformity certification/declaration, test report and goods labeling rules.	Pay special attention to ONT/ONU models with Wi‑Fi, Bluetooth, 4G/5G or radio transmission.
Pre-ETA control point	Model, optical standard, Wi‑Fi standard, quantity, origin, C/O, power adapter, test report and original label.	Close these items before cargo arrival to avoid post-ETA document supplementation.

Legal note: This is an operational review framework. Final policy depends on model, datasheet, import purpose, new/used status, tariff schedule and regulations effective at customs declaration time.

SCOPE OF APPLICATION

This guide applies only to ONT/ONU – optical network terminal/unit equipment used in optical access networks, connecting the optical line from a telecom operator to end users, factories, offices, hotels or project systems.

Applicable cases

Pure bridge ONT/ONU converting optical signal to Ethernet.
ONT/ONU with LAN port, PON/SC/APC port, telephone port and power adapter.
ONT/ONU with integrated Wi‑Fi, subject to additional radio/ICT review.
Imports for trading, telecom projects, FDI/EPE, factories or warranty purposes.

Not automatically covered

Standalone router, access point, mesh Wi‑Fi, or CPE with different technical nature.
OLT, optical switch, media converter, SFP module or specialized optical transmission equipment.
Used/refurbished equipment without review of device age and import policy.
Equipment with VPN, firewall, encryption or dedicated security functions.

Review must be made according to catalogue, datasheet, model and actual import purpose.

CLASSIFICATION & TECHNICAL IDENTIFICATION

ONT/ONU should be identified by principal function, operating mechanism and technical configuration. The key point is whether the device merely transmits/receives/converts optical data or also integrates routing, Wi‑Fi, VoIP, security or advanced network management functions.

Technical criterion	Document to check	Risk if wrongly described	Suggested wording on documents/declaration
Principal function	Catalogue, datasheet, user manual	Misclassified as router, CPE, media converter or another transmission device.	Optical network terminal ONT/ONU, model…, for GPON/EPON network.
Optical standard	GPON/EPON/XG-PON specifications, PON port, wavelength	Insufficient basis for classification under data transmission/reception apparatus.	State GPON/EPON ONT/ONU if shown in catalogue.
Wi‑Fi function	Band, 802.11 standard, output power, test report	Missing ICT/radio conformity control.	Clearly state “with integrated Wi‑Fi” if applicable.
Power adapter/accessories	Packing List, product photos, adapter label	Electrical/labeling issues or incomplete accessory declaration.	ONT/ONU with power adapter and accessories as a set.
Goods condition	Invoice, contract, photos, serial list	Used/refurbished goods may trigger different policy.	State new 100% or actual condition.

HS CODE – TAXES – C/O

The HS code for ONT/ONU is commonly reviewed under heading 8517.62 – machines for reception, conversion, transmission or regeneration of voice, images or other data, including switching and routing apparatus. The exact code must be based on function, structure, connection standard, Wi‑Fi module and technical description.

Reference HS code	Condition for application	Risk if wrong code is used	Documents to cross-check
8517.62.59	May be reviewed for ONT/ONU or other data transmission/reception/conversion apparatus, depending on tariff description.	Wrong HS may cause wrong tax, wrong specialized policy, wrong C/O treatment or classification query.	Catalogue, datasheet, user manual, port photos, model list, original label.
Other 8517.62.x code	Applicable if the device is technically a router, modem, gateway, transmission apparatus or switch under tariff wording.	Confusing Wi‑Fi ONT with router, or vice versa, may distort conformity documents.	Routing, NAT, Wi‑Fi, VoIP, firewall, VPN and optical standard functions.
Other code outside 8517.62	Only if technical documents prove the product is not a data transmission/reception/conversion apparatus under 8517.62.	Risk of HS rejection during post-clearance audit.	Detailed technical file and classification opinion where necessary.

PROPOSED TAX TABLE

Tax item	Proposed rate for preliminary costing	Condition for application	How to verify before declaration
Ordinary import duty	Apply under Decision 15/2023/QD-TTg if goods do not qualify for MFN/FTA treatment.	Used when MFN origin or preferential treatment conditions are not met.	Check the official HS code and ordinary tariff at declaration time.
Preferential MFN import duty	Preliminarily review 0% for many 8517.62 telecom/data devices.	Only when HS code and origin meet MFN conditions.	Search the current preferential import tariff by 8/10-digit HS code.
VAT	Base rate 10%; review possible 8% during 01 July 2025–31 December 2026 if not excluded.	Depends on VAT policy, product group and exclusion appendices at import time.	Check Decree 174/2025/ND-CP and goods dossier.
Special preferential duty under C/O	May be 0% or another FTA rate if the C/O is valid.	Correct form, origin criterion, goods description and HS code.	Check C/O form, origin criterion, direct transport, value and product description.

C/O (Certificate of Origin) supports duty reduction only when the form, origin criterion, product description, HS code and direct transport requirements are satisfied. If the C/O description is too generic or the model does not match Invoice/Catalogue, Customs may reject preferential treatment or request explanation.

APPLICABLE SPECIALIZED POLICY

Goods situation	Possible policy	Documents to check	Authority/portal if identifiable	Recommended timing	Risk note
Pure ONT/ONU without Wi‑Fi	Review ICT/telecom policy and Group 2 goods list.	Catalogue, datasheet, model list, original label.	Ministry of Science and Technology/telecom authority or relevant service portal.	Before ETA.	Do not conclude no conformity requirement without checking model and list.
ONT/ONU with Wi‑Fi	May require conformity certification/declaration, sample testing and ICT quality control.	Test report, radio parameters, frequency bands, output power, Wi‑Fi standard.	Relevant ICT/telecom authority.	Before cargo arrival or once technical documents are available.	High risk if test report or radio data is missing.
Security/encryption functions	Review civil cryptography/network information security control.	Datasheet, VPN, encryption, firewall, security gateway description.	Relevant specialized authority if in scope.	Before purchase is finalized.	Do not treat it automatically as ordinary network equipment.
Power adapter included	Review labeling, electrical parameters and accessory documents.	Adapter label, input/output parameters, Packing List.	Customs/specialized authority if required.	Before Packing List is locked.	Undeclared adapter may distort description and customs value.
Used/refurbished goods	Review policy on used equipment and foreign trade management.	Invoice, contract, photos, year of manufacture, serial list.	Customs and specialized ministry where relevant.	Before shipment leaves origin port.	Risk of import restriction or explanation request.
Project/EPE/FDI import	Review customs regime, duty incentives if any and project asset management.	Contract, PO, equipment list, intended use.	Customs office of declaration.	Before declaration.	Wrong import regime may affect tax and audit exposure.

LEGAL DOCUMENTS TO REVIEW

Document group	Name/number	Issuing authority	Effective time	Role in procedure	Key provisions/appendices	Review note
Law	Customs Law 2014	National Assembly	Currently applicable, check amendments if any.	General basis for customs procedures, inspection and supervision.	Rules on declaration, document inspection and physical inspection.	Review according to import type.
Decree	Decree 69/2018/ND-CP	Government	15 May 2018	Foreign trade management and conditional/prohibited goods.	Appendices on prohibited/conditional goods if applicable.	Important for used/refurbished equipment.
Circular	Circular 29/2025/TT-BKHCN	Ministry of Science and Technology	31 Dec 2025	List of potentially unsafe ICT and telecom products/goods.	Appendices on Group 2 ICT/telecom goods.	Check ONT/ONU model and Wi‑Fi function.
Decree	Decree 43/2017/ND-CP and Decree 111/2021/ND-CP	Government	01 Jun 2017; 15 Feb 2022	Goods labeling and Vietnamese supplementary label.	Mandatory label contents.	Check original label, origin, model and manufacturer.
Decision	Decision 15/2023/QD-TTg	Prime Minister	15 Jul 2023	Ordinary import duty application.	Ordinary tariff list.	Use when MFN/FTA conditions are not met.
Decree	Decree 174/2025/ND-CP	Government	01 Jul 2025–31 Dec 2026	VAT reduction policy under Resolution 204/2025/QH15.	Exclusion appendices and VAT reduction scope.	Do not apply 8% without appendix review.
Technical regulations	Relevant ICT/telecom QCVN/TCVN if applicable	Specialized authority	According to current instruments	Basis for testing and conformity certification/declaration.	Technical limits, bands, safety/EMC if applicable.	Further review required based on actual dossier/product group.

VIEW / DOWNLOAD ORIGINAL LEGAL DOCUMENTS

Businesses may search legal documents by number on the official legal document portal, the Government portal or the issuing authority’s website.

Circular 29/2025/TT-BKHCN Decree 174/2025/ND-CP Decree 43/2017/ND-CP

Businesses should additionally verify the documents on the official legal document portal or the issuing authority’s website before application.

CUSTOMS CLEARANCE DOCUMENT SET

Commercial documents

Commercial Invoice.
Packing List.
Bill of Lading/Air Waybill.
Sales Contract/Purchase Order if any.
C/O if preferential duty is claimed.
Catalogue/Datasheet/User Manual.
Product photos, original label, model list and serial list where needed.

Specialized documents if applicable

Quality inspection/conformity certification/declaration if in scope.
Test report for Wi‑Fi/ICT/telecom functions if applicable.
Goods label and Vietnamese supplementary label file.
Technical documents showing GPON/EPON standard, optical ports and Wi‑Fi bands.
Civil cryptography/network security documents if the device is regulated.

Document group	Required document	Used for	Usually prepared by	Common error	Pre-ETA check
Commercial	Invoice, Packing List, Contract/PO	Value, quantity and goods description declaration	Importer/Exporter/Procurement	Model, origin and description mismatch.	Cross-check every model with catalogue and label.
Transport	B/L or AWB, Arrival Notice, Pre-alert	Delivery order, manifest and customs declaration	Forwarder/Docs	Wrong consignee, package count or weight.	Match transport document with Packing List and booking.
Technical	Catalogue, datasheet, user manual	HS and specialized policy review	Manufacturer/Importer	Wi‑Fi or optical standard not shown.	Request full datasheet before shipment.
Specialized	Test report, conformity documents, quality registration if any	Clearance and market circulation	Compliance/testing body	Prepared after ETA causing delay.	Review Group 2 ICT list before ETA.
Origin	C/O, transport documents, invoice	FTA preferential duty	Exporter/Importer	Wrong form, criterion or description.	Check C/O draft, origin criterion and HS code.

Document matching rule: Goods name, quantity, model, serial, origin and technical specifications must be fully consistent among commercial documents, catalogue, label, specialized dossier and customs declaration.

DECISION POINTS THAT MAY HOLD THE SHIPMENT

Decision point	Question to answer	Supporting document	Consequence if unclear	Recommended handling
HS code	Is the product classified as data transmission/reception apparatus or another network device?	Catalogue, datasheet, port photos	Classification explanation request.	Finalize HS logic before declaration.
Wi‑Fi	Does the device transmit Wi‑Fi/Bluetooth/4G/5G?	Radio specifications, test report, label	Missing ICT conformity control.	Separate pure ONT and Wi‑Fi ONT in model list.
Model	Does the Invoice model match catalogue and original label?	Invoice, Packing List, label, photos	Document amendment or explanation request.	Lock model list before ETD/ETA.
C/O	Is the C/O form, description and HS code correct?	C/O, invoice, B/L	Preferential FTA duty may be denied.	Check C/O before original issuance.
Goods condition	New or refurbished/used?	Invoice, contract, photos, serial	Used-goods policy issue.	Do not accept used goods without import condition review.
Labeling	Does label show origin, model, manufacturer and technical data?	Original label, package	Market circulation issue after clearance.	Prepare Vietnamese supplementary label if required.

PRACTICAL E2E PROCEDURE

Step 1: Pre-ETA review

Confirm HS code, policy, tax, C/O, label, goods condition and whether specialized inspection/conformity is required.

Step 2: Lock documents and technical file

Finalize Invoice, Packing List, B/L/AWB, catalogue, datasheet, model list and serial list; check goods name, model, quantity, origin and specifications.

Step 3: Register specialized procedure if any

Implement quality inspection, conformity certification/declaration or permit if the model is in scope; do not wait until cargo arrival.

Step 4: Lodge customs declaration

Prepare for Green, Yellow or Red channel; be ready to explain HS, customs value, origin, C/O, catalogue and ICT policy.

Step 5: Clear, deliver and archive

Move cargo to warehouse, handle supplementary label/conformity mark if applicable, archive shipment file and prepare for post-clearance audit.

PRE-ETA RISK CHECKLIST

Risk	Consequence	Pre-ETA control	Document to check
Generic name such as “network equipment”	Wrong HS or specialized policy.	State ONT/ONU, model, GPON/EPON standard and Wi‑Fi status.	Catalogue, datasheet, Invoice.
Model mismatch	Document correction/explanation request.	Create and lock model list before shipment.	Invoice, Packing List, label, catalogue.
Missing test report/conformity file for Wi‑Fi ONT	Delayed clearance or circulation issue.	Review ICT list and prepare specialized documents before ETA.	Test report, radio data, relevant QCVN.
Wrong C/O form or origin criterion	FTA duty denied.	Check C/O draft before issuance.	C/O, Invoice, B/L, origin criterion.
Unclear new/used status	Used equipment policy issue.	Require document showing new 100% or verify used import conditions.	Invoice, contract, photos, serial list.
Undeclared adapter/accessories	Wrong value or description.	Cross-check Packing List against actual set.	Packing List, packing photos, adapter label.

FAQ – COMMON BUSINESS QUESTIONS

Does ONT/ONU import require a license?

No general conclusion should be made. Review model, Wi‑Fi/telecom function, ICT list and actual technical documents.

Does ONT/ONU require conformity certification?

It may, if covered by the Group 2 ICT/telecom list or radio functions. Check Circular 29/2025/TT-BKHCN and relevant QCVN.

Can Wi‑Fi ONT be declared the same as pure ONT?

Not recommended. Wi‑Fi ONT needs separate radio parameters, bands, standards, output power and test documents if applicable.

Can C/O reduce duty?

Yes, if the C/O is valid in form, origin criterion, product description, HS code and direct transport requirement.

Are samples/warranty goods handled like commercial imports?

Not always. Import type, value, purpose and specialized policy must be reviewed for each shipment.

What if Invoice model differs from catalogue?

Request correction or official model mapping from manufacturer before declaration to avoid explanation requests.

IMPLEMENTATION SOLUTION FROM TGIMEX

This article provides a map of HS code, taxes, documents and specialized policy for ONT/ONU. In real shipments, businesses must still review catalogue, datasheet, model, documents, origin, goods condition and import purpose.

Pre-ETA review

HS code, specialized policy, C/O, taxes, goods labeling, catalogue/datasheet/model.

Compliance document control

Cross-check Invoice, Packing List, B/L/AWB, C/O, catalogue, test report, label and technical documents.

International logistics

Coordinate with overseas agents, carriers/airlines, ETA tracking, pre-alert and transport documents.

Customs declaration & audit file

Prepare declaration documents, handle Green/Yellow/Red channel, support HS, value and origin explanation, and archive post-clearance files.

For shipments that may involve specialized inspection, permits, C/O or labeling requirements, businesses should not wait until cargo arrival to start dossier review. Each mismatch among Invoice, Packing List, catalogue, datasheet, C/O or product label may lead to document supplementation, clearance delay or unplanned storage charges.

TGIMEX supports businesses in setting up an E2E import plan: pre-ETA policy review, document checking, international logistics coordination, customs declaration, clearance handling, domestic delivery and post-clearance file archiving. This approach helps control schedule, cost and compliance risks from the preparation stage.

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