Circular 42/2026/TT-BCT detailed list of dual-use goods under the Ministry of Industry and Trade's management

THE MINISTRY OF INDUSTRY AND TRADE
^________
No. 42/2026/TT-BCT

THE SOCIALIST REPUBLIC OF VIETNAM
Independence - Freedom - Happiness
^{_______________}
Hanoi, July 29, 2026

FOR THE MINISTER
DEPUTY MINISTER


Nguyen Sinh Nhat Tan

No.

HS code

Description

Technical and technological specifications

Reference ECCN

I

Electronics

1

85044090

High-power direct-current power supplies

- Static converters having both of the following characteristics:

(i) Capable of continuously producing, for a period of 8 hours, a voltage of 100 V or greater with an output current of 500 A or greater;

(ii) Current or voltage stability better than 0.1% over a period of 8 hours.

- Excluding electromagnetic power supplies (high-power direct-current type) having all of the following characteristics:  capable of continuous operation with an output current of 500 A or greater at a voltage of 100 V or greater; and capable of current or voltage regulation better than 0.01% over a period of 8 hours.

- Not of a kind used for automatic data-processing machines and units thereof or telecommunications equipment; not battery chargers having a rated power exceeding 100 kVA; not rectifiers; and not inverters.

3A226

2

85044090

High-voltage direct-current power supplies

- Static converters having both of the following characteristics:

(i) Capable of continuously producing, for a period of 8 hours, with a voltage of 20 kV or greater and an output current of 1 A or greater;

(ii) Current or voltage stability better than 0.1% over a period of 8 hours.

- Excluding high-voltage power supplies for ion sources having all of the following characteristics: capable of continuous operation; an output voltage of not less than 20,000 V; an output current of 1 A or greater; and voltage stability better than 0.01% over a period of 8 hours.

- Not of a kind used for automatic data-processing machines and units thereof or telecommunications equipment; not battery chargers having a rated power exceeding 100 kVA; not rectifiers; and not inverters.

3A227

3

85044040

85044090

Frequency changers (converters or inverters)

- Static converters capable of being used as variable-frequency or fixed-frequency motor controllers and having all of the following characteristics:

(i) A multiphase output providing a power of 40 VA or greater;

(ii) Operating at a frequency of 600 Hz or greater;

(iii) A control step (or frequency accuracy) of less than 0.2%.

- Excluding frequency changers, including converters or inverters, specially designed or prepared to supply power to the motor stators of gas centrifuges used in enrichment processes and having all of the following characteristics:  a multiphase frequency output of 600 Hz or greater; high stability; and a control step (or frequency accuracy) of less than 0.2%.

- Note:

Frequency changers or generators are not controlled if they have hardware, software or technological limitations that restrict their performance below the levels specified above.

3A225

II

Chemicals

4

36020000

High explosives or substances or mixtures containing more than 2% by weight of high explosives

- Excluding goods used for national defence and security purposes.

- Having a crystal density greater than 1.8 g/cm³ and a detonation velocity greater than 8,000 m/s.

1C239

5

36020000

Shaped charges

“Shaped charges” having all of the following characteristics:

(i) A net explosive quantity (NEQ) greater than 90 g; and

(ii) An outer casing diameter of 75 mm or more.

1A008.a

6

36020000

Linear shaped cutting charges

Linear shaped cutting charges having all of the following characteristics:

(i) An explosive load greater than 40 g/m; and

(ii) A width of 10 mm or more.

1A008.b

7

36031000

36032000

Detonating cords and safety fuses

Detonating cords having an explosive core loading greater than 64 g/m.

1A008.c

8

36036000

Electric detonators

- Including the following types:

(i) Exploding bridge (EB) detonators;

(ii) Exploding bridge wire (EBW) detonators;

(iii) Slapper detonators;

(iv) Exploding foil initiators (EFI).

Note:

- All controlled detonators use a small electrical conductor, such as a bridge, bridge wire or foil, that explosively vaporizes when a fast, high-current electrical pulse passes through it.

- In types other than slapper detonators, the exploding conductor initiates chemical detonation in a high-explosive material in direct contact with it, such as PETN (pentaerythritol tetranitrate).

- In slapper detonators, the explosive vaporization of the electrical conductor propels a flyer/slapper across a gap; when the slapper impacts the explosive material, it initiates chemical detonation.  In some designs, the slapper is driven by magnetic force.

- The term “exploding foil initiator” may be used to refer to either an exploding bridge detonator or a slapper detonator.

1A007.b

9

29214400

2-Nitrodiphenylamine

CAS 119-75-5

1C111.c

10

29209000

Triethylene glycol dinitrate

CAS 111-22-8

1C111.c

11

29209000

Trimethylolethane trinitrate

CAS 3032-55-1

1C111.c

12

29209000

Diethylene glycol dinitrate

CAS 693-21-0

1C111.c

13

28500000

High-purity hydrides of phosphorus, arsenic or antimony

Having a purity greater than 99.999%, whether or not diluted in inert gases or hydrogen.

Excluding hydride compounds containing 20 mol% or more of inert gases or hydrogen.

3C004

14

29319090

High-purity organometallic compounds of aluminum, gallium or indium

Organometallic compounds of aluminum, gallium or indium having a purity, on a metal basis, greater than 99.999%.

3C003.a

15

29314400

29314800

293149

29315200

29315300

29315400

293159

29319049

High-purity organoarsenic, organoantimony and organophosphorus compounds

Organoarsenic, organoantimony and organophosphorus compounds having a purity greater than 99.999%, based on the inorganic element.

3C003.b

16

39269099

Syntactic foam designed for underwater use at depths not exceeding 1,000 m and having a density of less than 561 kg/m³

Syntactic foam consists of hollow spheres of plastic or glass embedded in a resin matrix.

(i) Designed for underwater use at depths not exceeding 1,000 m; and

(ii) Having a density of less than 561 kg/m³.

8C001

III

Metals and alloys

17

81041900

81049000

High-strength magnesium alloys

- Having both of the following characteristics:

(i) An ultimate tensile strength of 345 MPa or greater; and

(ii) A corrosion rate of less than 1 mm/year in a 3% aqueous sodium chloride solution, measured in accordance with ASTM G-31 or equivalent national standards.

- Not intended for use as coating substrates.

- Containing magnesium metal in a percentage by weight greater than that of any other individual element in the alloy.

- Manufactured from metal alloy powder or particulate material using either of the following composition systems: Mg-Al-X or Mg-X-Al, where X represents one or more alloying elements.

1C002.b

18

75022000

75051200

75052200

75062000

75071200

7508

High-strength nickel alloys

- Having any of the following characteristics:

(i) A stress-rupture life of 10,000 hours or longer at 923 K (650°C) under a stress of 676 MPa; or

(ii) A low-cycle fatigue life of 10,000 cycles or more at 823 K (550°C) under a maximum stress of 1,095 MPa.

- Where: “stress-rupture life” is measured in accordance with ASTM E-139 or equivalent national standards; “low-cycle fatigue life” is measured in accordance with ASTM E-606 or equivalent national standards.

- Not intended for use as coating substrates.

- Nickel accounts for a higher percentage by weight than any other individual element contained in the alloy.

- Manufactured from metal alloy powder or particulate material using either of the following composition systems: nickel alloys (Ni-Al-X or Ni-X-Al) suitable for turbine-engine parts or components, containing fewer than 3 non-metallic particles introduced during manufacture that are larger than 100 μm per 10⁹ alloy particles, where X represents one or more alloying additions.

1C002.b

19

81082000

81089000

High-strength titanium alloys

- Having any of the following characteristics:

(i) A stress-rupture life of 10,000 hours or longer at 723 K (450°C) under a stress of 200 MPa; or

(ii) A low-cycle fatigue life of 10,000 cycles or more at 723 K (450°C) under a maximum stress of 400 MPa.

- Where: “stress-rupture life” is measured in accordance with ASTM E-139 or equivalent national standards; “low-cycle fatigue life” is measured in accordance with ASTM E-606 or equivalent national standards.

- Not intended for use as coating substrates.

- Titanium accounts for a higher percentage by weight than any other individual element contained in the alloy.

- Manufactured from metal alloy powder or particulate material using either of the following composition systems: Ti-Al-X or Ti-X-Al, where X represents one or more alloying components.

1C002.b

20

76012000

760429

76052100

76052910

76052990

76061290

76069200

76082000

76169990

High-strength aluminum alloys

- Having any of the following characteristics:

(i) A tensile strength of 240 MPa or greater at 473 K (200°C); or

(ii) A tensile strength of 415 MPa or greater at 298 K (25°C).

- Not intended for use as coating substrates.

- Aluminum accounts for a higher percentage by weight than any other individual element contained in the alloy.

- Manufactured from metal alloy powder or particulate material using either of the following composition systems: Al-Mg-X or Al-X-Mg; Al-Zn-X or Al-X-Zn; or Al-Fe-X or Al-X-Fe, where X represents one or more alloying additions.

1C002.b

21

72253090

72254090

72255090

72259190

72259990

72269190

72269290

72269999

73041900

730451

730459

73049090

73065099

73069097

73069099

Maraging steel

- Maraging steel is an iron-based alloy generally characterized by a high nickel content and a carbon content not exceeding 0.03% by weight, and by the use of substitutional elements or precipitates to strengthen the alloy and enable age hardening. This steel is subjected to heat-treatment cycles to promote martensitic transformation (the annealing stage), followed by aging (the age-hardening heat-treatment stage).

- Maraging steel capable of being used in “missiles” (complete rocket systems and unmanned aerial vehicle systems capable of achieving a range exceeding 300 km) and having all of the following characteristics:

(i) An ultimate tensile strength, measured at 293 K (20°C), equal to or greater than 0.9 GPa in the annealed condition or 1.5 GPa in the age-hardened condition (quenched and aged);

(ii) In any of the following forms:

- Sheets, plates or tubes having a wall or sheet thickness of 5.0 mm or less; or

- Tubular forms having a wall thickness of 50 mm or less and an inner diameter of 270 mm or greater.

1C116

22

72181000

72191400

72192400

72193300

72193400

72193500

72199000

72210000

72221100

72221900

722220

722230

73041100

730422

730424

73044100

73044900

73053110

730611

73062100

73064019

73064020

Stainless steel containing more than 0.1% titanium, 4.5-7% nickel and 17-23% chromium.

Titanium-stabilized duplex stainless steel (Ti-DSS) having all of the following characteristics:

(i) Containing 17.0-23.0% by weight of chromium and 4.5-7.0% by weight of nickel;

(ii) Having a titanium content of more than 0.1% by weight; and

(iii) Having a ferritic-austenitic microstructure (also referred to as a two-phase microstructure), of which at least 10% by volume (in accordance with ASTM E-1181-87 or equivalent national standards) is gamma iron (austenite); and

(iv) Being in any of the following forms:

- Ingots or bars measuring 100 mm or more in each dimension;

- Plates having a width of 600 mm or more and a thickness of 3 mm or less; or

- Tubes or pipes having an outside diameter of 600 mm or more and a wall thickness of 3 mm or less.

1C118

23

81019990

Tungsten (wolfram), tungsten carbide and alloys containing more than 90% tungsten by weight

- Having both of the following characteristics:

(i) Having hollow cylindrical symmetry, including cylindrical segments, with an inside diameter of between 100 mm and 300 mm; and

(ii) Having a mass greater than 20 kg.

- This entry does not apply to manufactured products specially designed for use as weights or gamma-ray collimators.

- This entry does not include the following materials for manufacturing components of “missiles” (complete rocket systems and unmanned aerial vehicle systems capable of achieving a range greater than 300 km):

(i) Tungsten and tungsten alloys in particulate form, having a tungsten content of not less than 97% by weight and a particle size not exceeding 50 × 10⁻⁶ m (50 μm).

(ii) Solid tungsten materials having all of the following characteristics:

+ Having any of the following material compositions: Tungsten and alloys containing not less than 97% tungsten by weight; copper-infiltrated tungsten containing not less than 80% tungsten by weight; or silver-infiltrated tungsten containing not less than 80% tungsten by weight; and

+ Capable of being machined into any of the following products: Cylinders having a diameter of 120 mm or more and a length of 50 mm or more; tubes having a diameter of 65 mm or more, a wall thickness of 25 mm or more and a length of 50 mm or more; or blocks having dimensions of 120 mm × 120 mm × 50 mm or greater.

1C226

24

81021000

81029900

Molybdenum and alloys having a high molybdenum content

Molybdenum and alloys in powder form, containing 97% or more molybdenum by weight and having a particle size not exceeding 50 × 10⁻⁶ m (50 μm).

1C117.b

25

810610

High-purity bismuth

Having both of the following characteristics:

(i) A purity of 99.99% or greater by weight; and

(ii) Containing less than 10 parts per million (ppm) silver by weight.

1C229

26

81041100

81041900

81043000

81049000

High-purity magnesium

Having both of the following characteristics:

(i) Containing less than 200 parts per million (ppm) by weight of metallic impurities other than calcium; and

(ii) Containing less than 10 parts per million (ppm) boron by weight.

1C228

27

28051200

High-purity calcium

Having both of the following characteristics:

(i) Containing less than 1,000 parts per million (ppm) by weight of metallic impurities other than magnesium; and

(ii) Containing less than 10 parts per million (ppm) boron by weight.

1C227

28

81123100

81123900

Hafnium and hafnium alloys

Hafnium metal, hafnium alloys and compounds containing more than 60% hafnium by weight.

1C231

29

81121200

81121300

81121900

Beryllium and beryllium alloys

Beryllium metal; alloys containing more than 50% beryllium by weight; beryllium compounds; manufactures thereof; and waste or scrap of any of the foregoing.

Excluding the following items:

(i) Metal windows for X-ray machines or borehole-logging devices;

(ii) Oxide shapes in fabricated or semi-fabricated forms “specially designed” for electronic component parts or as substrates for electronic circuits;

(iii) Beryl (beryllium aluminium silicate) in the form of emeralds or aquamarines.

1C230

30

81124100

81124900

Rhenium and rhenium alloys

Rhenium and alloys containing rhenium, having both of the following characteristics:

(i) Containing 90% or more rhenium by weight, or 90% or more of a combination of rhenium and tungsten by weight;

(ii) Having a mass greater than 20 kg and hollow cylindrical symmetry, including cylindrical segments, with an inside diameter of between 100 mm and 300 mm.

1C241

IV

Unmanned aerial vehicles

31

8806

Unmanned aerial vehicles (UAVs)

Designed for controlled flight outside the direct “natural vision” of the “operator” and having either of the following characteristics:

(i) An endurance of 1 hour or more; or

(ii) An endurance of 30 minutes or more and designed to take off and maintain stable flight in wind gusts of 46.3 km/h (25 knots) or greater.

Where:

- “Operator” means a person who initiates or controls the flight of a UAV.

- “Natural vision” means unaided human sight, with or without corrective lenses.

- Endurance shall be calculated under International Standard Atmosphere (ISA) conditions (ISO 2533:1975) at sea level and in zero wind.

9A012