World Trade and Supply Chains

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1Summary 重點摘要

World trade lets nations exchange what they lack for what they have: importing buys, exporting sells. A product's supply chain crosses many countries — raw materials, manufacturing, transport, retail linked in a chain, where one blockage shakes the globe; fair trade secures producers a fair return. Hong Kong is a major trading hub, and everything we use connects to the world.

2Vocabulary cards Vocabulary

3Step by step Steps

1. Step 1: Tell import from exportExample: Hong Kong grows no coffee beans yet drinks Brazilian and Colombian coffee — bringing coffee here is an import, shipping it out of Brazil is an export. Different places have different climates, resources and skills, and exchanging what each lacks completes what each needs — that is world trade. Buying in is import, selling out is export, and through this buying and selling the world's goods and services keep flowing. Beside import and export sits re-export: goods passing through Hong Kong only to be shipped onward, never sold or used here; the key to telling the three apart is whether the goods enter the local market.
2. Step 2: Follow a T-shirt's journeyExample: the cotton of a T-shirt grows on Xinjiang farms, is spun and sewn into cloth and clothes in Bangladeshi mills, is packed into containers and shipped to Hong Kong, and finally lands on a shop shelf — four places and about two months in all. Following one product's journey shows that behind every little object stands a cross-border supply chain, built from the labour of many people in different places. Every link in the chain adds value: raw cotton, woven cloth, finished clothes, with the price rising step by step; the retail tag covers transport, advertising and shop costs before the item reaches the shelf.
3. Step 3: Take apart a phone's partsExample: a phone's mineral raw materials come from Australia and Africa, its chips and screens are made in South Korea, Japan and Taiwan, and it is assembled in factories on the mainland or in Vietnam — parts from more than forty countries. No single country can build a whole phone alone; dividing the work makes production more efficient. Global cooperation creates one small phone and ties the world's economies tightly together. Division of labour brings efficiency and risk together: parts come from many countries, and a disaster or policy shift anywhere can stall the line — precisely why big firms keep backup suppliers.
4. Step 4: Know container shippingExample: one large container ship can carry more than twenty thousand containers, and a standard container holds about twenty-eight thousand kilograms of goods. Containers make loading and unloading as quick as stacking blocks — cranes lift a box within minutes — so sea-freight costs fall sharply and buying from far away becomes worthwhile. The container is hailed as the box that changed the world, the quiet hero of modern global trade. Hong Kong's Kwai Tsing terminals have long ranked among the world's busiest ports; quay cranes tens of metres tall, driven from cabs high above, swing containers up and down — quite a spectacle.
5. Step 5: See the chain reactionExample: during the pandemic, factories closed in one region, the world ran short of chips, carmakers everywhere could not get parts and had to cut or halt production. Supply chains link link to link; when one link is blocked, the factories, shops and consumers downstream are all affected. The lesson is that world trade depends on each other, and spreading supply sources and preparing backup plans can soften the shock of sudden events. News often calls the blocked link a bottleneck: when a giant vessel once wedged across the Suez Canal, world trade lost billions of dollars a day — one narrow point can trouble the whole planet.
6. Step 6: Know Hong Kong's re-export roleExample: appliances made on the mainland transfer at the Kwai Tsing container terminals onto ocean ships bound for Southeast Asia, Europe and America — this is re-export trade. Hong Kong is a free port: goods pass in and out without customs duty, with simple procedures and frequent sailings, which makes re-export natural. With its fine harbour and location, Hong Kong has long served as the region's key trade hub, linking the mainland with the world. Re-export earns Hong Kong service income: terminals, shipping, insurance and trade finance all flourish on it; with nearby ports competing fiercely, the city is shifting towards higher-value shipping services.
7. Step 7: Be a responsible consumerExample: buying chocolate with the fair trade label gives cocoa farmers a steadier, fairer income, and their communities gain funds to build schools and wells. Watch the origin and labels when shopping and prefer products that treat farmers and the environment well — that is voting with your spending. Global trade makes goods cheap and varied, but responsible consumers can make trade fairer and more sustainable. Beyond fair trade come green standards: some goods carry carbon-footprint or sustainability labels showing kinder production; every consumer choice is a vote for the trade model of the future.

4Diagrams Diagrams

5Worked example Example

6Common mistakes Mistakes

7Quick check Quick check

8Recap Recap

• No country is self-sufficient; importing and exporting to exchange needs is world trade.
• Supply chains link raw materials, manufacturing, transport and retail; one blocked link shakes the globe.
• Containers slashed sea-freight costs; Hong Kong's free-port status and facilities make it a re-export centre.
• Fair trade labels secure farmers fair incomes, and consumers' choices hold influence.
• Cherishing goods, buying by need and backing local produce are duties within the global supply chain.