（1） Prohibited items for express delivery:

1. Valuable securities and easily lost valuable items that are difficult to estimate, such as bills of lading, verification forms, passports, quota certificates, permits, licenses, personal documents, bills of exchange, invoices, domestic or foreign currency (cash), gold and silver ornaments, artificial jewelry, and mobile phones.

2. Various hazardous materials that are flammable, explosive, corrosive, toxic, strongly acidic, alkaline, and radioactive, such as matches, detonators, gunpowder, firecrackers, gasoline, diesel, kerosene, alcohol (liquid and solid), sulfuric acid, hydrochloric acid, nitric acid, organic solvents, pesticides, and other chemical products listed in the "Practical Manual of Chemical Hazardous Materials" published by the Chemical Industry Press.

3. Various types of strong poisons, anesthetics, and psychotropic substances, such as arsenic, opium, morphine, cocaine, heroin, marijuana, etc.

4. Items prohibited from circulation or shipment by national laws and regulations, such as cultural relics, weapons, ammunition, simulated weapons, etc.

5. Newspapers, books, pictures, promotional materials, audiovisual products, laser discs (VCD, DVD, LD), computer disks, and optical discs containing reactionary, obscene, or indecent content.

6. Obstructions to public health, such as bones (including burned bones), untreated animal skins, untreated animal bones, etc.

7. Animals, plants, and their specimens.

8. White powder with difficult to identify components.

9. Personal letters, etc.

（2） Aviation embargoes:

1. Items that pose a threat to aviation flight safety refer to items or substances that may significantly endanger personal health, safety, or cause damage to property during air transportation. There are mainly the following categories:

A. Explosives: such as fireworks, detonators, etc;

B. Gases: such as compressed gas, dry ice, fire extinguishers, gas storage tanks (without discharge devices that cannot be recharged), life preservers (with automatic expansion), etc;

C. Flammable liquids: such as paint, gasoline, alcohol, engine oil, camphor oil, engine starting fluid, turpentine, thinner, glue, perfume, etc;

D. Flammable solids: Spontaneous combustion substances, substances that release flammable gases when in contact with water, such as activated carbon, titanium powder, dried coconut meat, castor bean products, rubber debris, safety matches (box or sheet wiping), dry white phosphorus, dry yellow phosphorus, magnesium powder, etc;

E. Oxidants and organic peroxides: such as potassium permanganate;

F. Toxic and infectious substances: such as pesticides, lithium batteries, tear gas, etc;

G. Radioactive substances;

H. Corrosive products: such as batteries and alkaline battery fluids.

1. Magnets, magnetic steel, and other products containing strong magnetism without demagnetization protection packaging.

2. Any medication.

3. Other aviation prohibited items, such as powder goods (regardless of color), liquids (regardless of packaging used), goods with danger signs on the outer packaging, audio and video products (including CDs and VCDs) without certification from national audio and video publishers, knives, durians, gas carrying lighters, any goods involving the concepts of "weapons" and "firearms" (including toys), etc.