全球科技供应链之谜:为何加征关税也无法动摇亚洲制造与海运帝国? TechButMakeItReal 2026-08-26

零售套利与直邮模式:Temu的低价底层逻辑

你是否思考过,为什么在社区小店购买的一个手机壳,其价格会远高于从 Temu 上直接订购的价格?虽然亚洲发货需要数周时间,但其核心溢价逻辑并不在于运输本身。事实上,这个手机壳可能出自同一个制造工厂,其劳动力成本差异也并非决定性因素。真正的差异在于商品在到达你手中之前经历了多少层中间环节。一个生产成本仅为50美分的手机壳,从制造商到分销商会产生50%的加价(Markup: 在成本价基础上增加的利润额),再到批发商又加价50%,最后零售商再叠加75%的利润。当它最终摆在货架上时,其售价已飙升至10美元。

以 Temu 为代表的跨境电商平台则彻底颠覆了这一链条。它们通过直接连接消费者与工厂,将四次重复加价缩减为一次。此外,最低免税额(De Minimis: 允许低于特定价值的进口商品免税通关的政策,例如美国的800美元限额条款)起到了关键作用。传统的实体店进口10,000个手机壳必须以商业货运形式缴纳关税,而跨境直邮则将这10,000个手机壳拆分为10,000个独立的个人包裹寄送,从而实现了完全免税。再加上“零库存”的轻资产模式,使得商品在用户点击购买前一直存放在工厂,省去了传统零售商在仓储、物流、店面租金及人员雇佣上的双重成本。正是庞大的全球快递运输系统,支撑起了这一直邮模式的运转。

Original English Source

Have you ever thought about why a phone case, for example, bought in a local shop in your neighborhood costs more than a phone case from Temu? Sure, shipping from Asia takes a couple of weeks. The markup is lower. Cost of labor may be lower, although it is questionable because these phone cases probably come out of the same manufacturing plant. So, cost of labor, like I said, is debatable. But seriously, think about it. How can an object made on the other side of the planet, travel halfway around the world, ship across oceans, pass through customs, stored in warehouses, delivered to your mailbox, cost less than the one in your nearest dollar store? Plus, don't forget when you order on Temu or similar websites, you're not ordering in bulk. So, the reason it costs so little is not because you're buying thousands.

The reason why the one in the dollar store costs more, actually isn't shipping. The real difference is how many hands it passes through before it gets to you. A phone case might cost 50 cents to make, but then it goes from the manufacturer to distributor who marks it up 50%, then to a wholesaler who also marks it up 50%, then to the retailer who adds another 75% on top of it. And by the time it sits on a shelf in your neighborhood, that less than a dollar case costs 10. Companies like Temu, on the other hand, skip almost all of that and connect you directly with a factory with one markup instead of four. And there's more to it. For years, packages under $800 shipped straight to consumers, avoiding import duties, a rule known as de minimis. A dollar store importing 10,000 cases in one shipment gets taxed as commercial freight. Temu on the other hand shipping those same 10,000 cases as 10,000 separate individual packages pays nothing. And lastly, companies like Temu hold zero inventory, which means that your case sits in the factory until you click buy and then it ships directly to you. While a dollar store has to ship in bulk to a warehouse, pay rent and staff to sit on that inventory, then ship it again to the store and pay rent and staff at the store as well. So, the price gap isn't as much about the shipping in this case. But that doesn't mean shipping is irrelevant. It is the shipping system that is exactly what makes the entire direct from factory model possible in the first place.

黄金航道与地缘扼制点:不可承受的绕道成本

在全球直邮网络高效运转的背后,是一个由极少数关键扼制点组成的脆弱海运网络。如果一艘货船从亚洲驶往欧洲,它通常从上海、深圳或中国台湾出发,向西穿过台湾海峡(Taiwan Strait),或向东绕道菲律宾海,随后向南通过马六甲海峡,跨越印度洋,经红海通过苏伊士运河进入地中海。若是驶往北美,则直接横渡太平洋到达西海岸港口(如洛杉矶、西雅图或温哥华),或者南下通过巴拿马运河前往东海岸(如纽约或佛罗里达)。

这一航线网络极易受到地缘政治波动的冲击。以台湾海峡为例,这不仅是一条物流要道,更是中美地缘政治冲突的核心敏感地带。一旦该海峡因潜在冲突而关闭,全球尖端半导体(Semiconductor: 制造芯片的固态电子器件)的供应将直接削减62%,普通芯片的供应也会下降31%,进而引发全球性的电子产品短缺与价格暴涨。虽然理论上商船可以绕道菲律宾海,但由此增加的时间、燃料和保费成本是极其高昂的。例如,一艘大型集装箱船的每日燃油成本约为50,000美元。尽管平摊到数万台设备上看似数额微小,但一旦爆发危机,保险公司将征收巨额的“战争险附加费”甚至直接拒绝承保。此外,运力吃紧导致的舱位竞拍大战,会让急于出货的进口商陷入残酷的价格竞争,从而以指数级速度推高终端消费品价格。据估计,台湾海峡冲突在第一年就将对全球经济造成高达10万亿美元的损失,占全球 GDP 的 9.6%,其杀伤力远超日本与德国一年的经济产出总量。

Original English Source

And it's built around a shockingly small number of bottlenecks. Listen closely. If the ship is going from Asia to Europe, it departs from Shanghai, Shenzhen, or Taiwan, then it goes either west of Taiwan through the Taiwan Strait or east of Taiwan through the Philippine Sea. Then it goes further south, makes a turn through the straight of Malacca, passes across the Indian Ocean, up the Red Seas Suez canal in Egypt, not too far from Saudi Arabia, and ends up in the Mediterranean from where it gets to wherever it needs in Europe. Now, if the ship is going from Asia to North America, it travels directly across the Pacific Ocean. It is a beautiful straightforward route all the way to the western ports of the US and Canada in Los Angeles, Oakland, Seattle or Vancouver. Or if it is going to the east coast of the US to places like New York or Florida, it turns south and crosses the Panama Canal. The North American route is pretty sweet from point A to point B.

The Taiwan Strait is roughly 180 km wide and it lays between mainland China and Taiwan. If you look at where Zhejiang, Shanghai, and major electronic manufacturers in Korea and Japan are located, you will see that going through the Taiwan Strait is the shortest and most efficient way to make it into the South China Sea and then move further south. But Taiwan is a major geopolitical choke point in a full war scenario between China and the US. Losing access to Taiwanese semiconductor plants, as well as avoiding the Taiwan Strait as the shipping route, would cut global supply of Frontier AI chips by 62%. And for less advanced chips, such as the ones used for everyday devices like phones or cars by 31%. If this were to happen, we would see a drastic spike in shortages and prices on the electronics market.

Can ships take another route and bypass Taiwan altogether? And if so, what will happen in that case? The ships absolutely can sail further east away from Taiwan into the Philippine Sea. But the problem is that detours are enormously expensive. They add distance, transit time, fuel, insurance, congestion, and they shift a tremendous flow of ships into routes and ports that are not designed to absorb all of them at once. Say there is a laptop sitting in a massive container that was loaded on a ship. That container might be holding 400, 500, 600 boxed laptops. If the ship needs to take a detour, it would become a fuel only detour. The cost of fuel per day is roughly $50,000. And if you divide that by 600 laptops, we're looking at approximately $83 loss per device, which is a negligible number for a manufacturer to absorb. But that $50,000 figure is not going to be the all-in loss in a worst scenario. In a geopolitical crisis, insurance companies will most definitely impose war risk premiums, which are massive, or refuse coverage for any loss inventory altogether. A normal Taiwan related premium that costs between $15,000 and $30,000 per voyage will go up to $100,000 to $150,000 in a worst scenario. On top of that, ports and alternative lanes will become congested. And lastly, a big portion of the shipping cost is the money that you pay to secure a space on the ship. Imagine a container ship that can load 20,000 containers. If they've got unused inventory, they may offer that space at a discount. But there are situations when there is only one slot left and several importers may need it very urgently. So, they start a bidding war. The carrier will take the highest price a buyer is willing to pay. Now add all of that up and you'll see how quickly the global supply chain starts to crash because nobody will be able to afford those prices anymore. The China US war involving Taiwan would burn about $10 trillion hole in the global economy industry in just the first year, which is roughly 9.6% of global GDP. For comparison, a year of war in Taiwan, would erase more economic output than Japan and Germany produce in an entire year combined. What's even more interesting is that to punch a hole in the supply chain, you do not need a full-scale military operation. You only need to make shippers unwilling to sail the straight. All they need is for an insurer to suspend coverage for East Asian shipping routes, which they will do even under a blockade scenario, let alone a full-scale war.

咽喉危机:马六甲与红海变局的连锁反应

除了台湾海峡,马六甲海峡(Strait of Malacca: 沟通印度洋与太平洋的国际重要水道)是全球能源和大宗商品运输的另一条生命线。全球约29%的海运石油贸易通过此通道,其中中国80%的进口原油都要经过这里。马六甲海峡每天承载的货物价值高达70亿美元,仅一个月的通航货物总值就相当于匈牙利全年的经济产出。如果马六甲海峡因突发事件受阻,半数以上的全球船队将不得不绕行印尼的巽他海峡。以中东波斯湾至日本的航线为例,这会导致航程增加4500公里,海上航行时间延长7天,运输成本直接上升20%。当这种延误成倍叠加,势必会造成船舶积压、运力下降以及能源和零部件价格的攀升。

而在航线的另一端,苏伊士运河的脆弱性同样在近年来展露无遗。2021年3月,超大型集装箱船“长赐号”(Ever Given)在苏伊士运河因强风与“岸壁效应”失控搁浅,导致运河瘫痪整整6天,每天卡死价值约96亿美元的货物,造成的间接经济损失在700亿至900亿美元之间,三星、LG、丰田和大众等多家跨国企业的装配线因此停工。此后,自2023年底持续恶化至2026年的红海危机中,也门胡塞武装对红海商船的袭击,逼迫大量货轮绕行好望角。绕道好望角每天会给每艘商船带来约150万美元的额外开支。长期的物流受阻最终成为压垮骆驼的最后一根稻草,迫使特斯拉和沃尔沃等车企在2024年初暂停了其欧洲工厂的运转。

Original English Source

Moving on to the second point, the Strait of Malaa. When you hear the Strait of Malaa, think oil and energy. It is the world's largest oil transit passage. Around 29% of global seaborn oil trade goes through this specific straight. China alone channels 80% of its oil imports through the straight of Mala. So on top of all the oil, Mala also receives all of the traffic coming from the straight of Taiwan. The value of cargo passing the straight of Malaa is around $7 billion per day. For context, if you multiply this number by 30 and take the value of goods passing through Malaca in 1 month, it would roughly equal the annual economic output of Hungary. If something happens in Malaa, nearly half of the world's shipping fleet would need to reroute around Indonesia or Sunda Straits. In the context of unit economics, for a ship traveling from the Persian Gulf to Japan, the Indonesian diversion adds roughly 4 and a half thousand kilometers and seven extra days at sea, which would roughly add 20% of cost. Multiply that across thousands of ships, more fuel burned, more vessels tied up at sea, less shipping capacity available, higher cost for energy and components, and the price of electronics tied up to this specific export route goes up.

After the straight of Malaa, the ship enters the Suez Canal and the Red Sea. Does anybody remember these photos? March 2021, a massive container ship called Evergiven, even though most people remember it as evergreen because those letters were painted on across the hole, turned sideways across the canal and blocked it. The ship fell victim to something called the bank effect, where the canal walls sucked it in and it rammed into the sandy embankment. It blocked the canal for six full days. And in those six days, the blockage held up roughly $9.6 billion in cargo per day with total economic damage estimated between 70 and $90 billion. Electronics, Samsung phones, LG displays, auto components, Toyota, Volkswagen, and Renault all shut production lines waiting on semiconductor chips and wiring harnesses stuck in the canal. The more recent Houthy campaign in the Red Sea, running since late 2023 and escalating again into 2026, forced the mass diversion around the Cape of Good Hope. Going through the Cape of Good Hope adds about $1.5 million in cost per vessel every single day. This shutdown was the last straw before Tesla and Volvo shut down European factories in early 2024.

陆运与河运的物理局限:为何海运地位无可替代

既然海域局势如此动荡,为什么不将货物分流至铁路或内河运输?答案在于这两种运输方式在物理规模和经济学上的硬伤。虽然铁路速度更快(中国至荷兰仅需15天,而海运需30天),但在运载量上与海运有着天壤之别。一艘现代超大型集装箱船可以搭载约20,000个集装箱,而一列货运火车仅能拉载约150个集装箱。这意味着一艘货船的运力相当于160列火车。

此外,铁路运输面临着极其繁琐的跨国清关和地缘政治障碍。以“新丝绸之路”铁路通道为例,在俄乌冲突导致俄罗斯和白俄罗斯路线被制裁封锁后,货运列车必须改道中通道:从中国出发,经哈萨克斯坦,将集装箱卸下装上渡轮横渡里海到达阿塞拜疆,重新装车后经格鲁吉亚、土耳其、保加利亚和奥地利,最终抵达荷兰。每一次国境线的穿越都伴随着昂贵的过境费和漫长的清关单据核验。这种模式只适合运输溢价空间大、时效要求极高的精密零部件,根本无法承载大宗日常电子产品的货运规模。同时,火车的长度也受限于铁轨物理条件和站台极限。至于内河航道,则由于水深和航宽限制,根本无法停靠海运所必需的深水巨轮。因此,上海、新加坡、深圳等超级深水港口因其得天独厚的深水条件,配合巨型船舶的规模经济,依然牢牢把持着全球物流的绝对支配权。

Original English Source

So, if after listening to all of this, you're wondering what about rivers? What about seas? Why not distribute delivery between shipping vessels and trains or planes? Why go around continents? Why run the risk of losing so much cargo when half of the world is on fire? Why not use trains? Trains are long. They're faster. They're less susceptible to weather changes. If you're asking all those questions, you're not alone. I had the same questions. And naturally, I went looking.

Let's start with what they have in common, which frankly isn't much. Both ships and trains need a crew. Both burn fuel. The cost of a voyage is mostly fixed. Whether a ship or train is half empty or completely full, fuel, crew, port fees, insurance stay more or less the same. Sure, you might need a couple more people here and there as your ship or train gets bigger, but the costs do not scale linearly. Which is why the more containers you put on a ship or on a train, the lower the cost per container. But this is where the similarities end. Now, on to the differences. A typical large sea vessel that goes between East Asia and Europe or North America carrying technology components and electronics can hold about 20,000 containers. A train at the same time carries roughly 150. 20,000 versus 150, meaning one ship replaces roughly 160 trains.

When a train travels between countries, it faces a mountain of border crossing paperwork at every national border it crosses. For example, if we wanted to ship electronics from China to the Netherlands, the train is going to be crossing six borders. China, Kazakhstan, Russia, Belarus, Poland, Germany, the Netherlands. Now throw geopolitics into the mix. After the Russian invasion of Ukraine, Russia and Belarus were hit by sanctions, so they're out of the equation. So what happens to the train route? It now starts following the new Silk Road corridor. China, Kazakhstan, Caspian Sea, which by the way to cross the sea, the containers will be taken off the train, loaded on a ferry to Azerbaijan, put back on a train in Azerbaijan, then Georgia, then Turkey, then Bulgaria or Romania, and then perhaps through Austria or any other neighboring country. The train will finally reach the Netherlands. Each country would require to pay fees for transit and depending on how military and political scenarios unfold, that list of countries could either change or grow. The new Silk Road is indeed faster than sea. It's about 15 days versus 30, but it carries a fraction of the volume at a meaningfully higher cost per unit. It's active and it is used regularly for shipments, but the shipments that it is used for are premium, time-sensitive, and you're paying for it. Plus, you can't simply put 24,000 containers on a train. There are physical track and station length limits that cap train length. So, it physically cannot carry as much as a sea vessel. Rails only advantage is speed. Like I said, 15 days versus 30. But economically speed only pays for itself when the cost of time exceeds the cost of rail shipping. This is why the rails market is dominated by the mid value goods and premium components but it is not used for bulk commodity electronics. Rail is a growing market because the Red Sea disruption made sea temporarily unavailable but it cannot absorb bulk electronic components at volume. So all in all the economics of shipping skew heavily towards sea cargo making rail roughly two to three times more expensive per container even in normal conditions.

To that you may say but what about rivers? What about seas? What if that ship goes inland? The answer is quite elementary. They're simply not deep enough. The economics assume you can load an ultra-large vessel in the first place. And ultra-large ships require deep water berths that only exist at coastal ports built specifically for them. Inland rivers are too shallow and too narrow for the vessels that generate the economies of scale. So they physically cannot host the ship sizes that make ocean cheap. This is why Shanghai, Singapore, and Shenzhen are exactly where they are. They sit at the specific geographic points with access to deep water. They're concentrated in a handful of megaports because that's where the manufacturing facilities are. and they have every incentive to build the biggest possible ships and run them on the fewest possible routes between those megaports and the western gateways.

制造生态的绝对壁垒:高额关税下的亚洲韧性

即使在重重关税的大背景下,从亚洲进口电子产品的优势依然无可动摇。2026年的一项分析显示,即便只在美国进行笔记本电脑的最终组装(零部件仍依赖亚洲进口),其总成本也仅比中国整机进口便宜6%;而如果在美建立一条完整的生产线,其总成本要高出14%。

这种成本差距的根源并非单纯的劳动力价格,而是亚洲无与伦比的产业集群密度(Industrial Cluster Density: 产业链上下游企业在特定地理空间内高度集中所形成的网络优势)。要制造一台精密电子设备,需要数百种不同工厂生产的零部件。在以中国为代表的亚洲制造业中心,这数百家配套供应商紧密分布在几百公里范围内。这种高密度的配套生态在北美根本不存在。尽管近年来美国加征关税政策将税率从2%逐步提升至17%以上,甚至针对部分半导体产品规划了50%至75%的惩罚性关税,使得部分低复杂度、劳动密集型的组装业务开始向墨西哥、印度和越南分流。但在高集成度、高精密度的核心电子元器件(如多层PCB、精密多组件系统)领域,亚洲由于成熟的供应链和生态系统的绝对代差,依然是全球科技制造业无法绕过且无可替代的基石。

Original English Source

Why does importing and shipping from Asia still beat local prices even after the tariffs? The number one reason is of course cost to manufacturing. I'm not going to spend a lot of time talking about manufacturing now because it deserves a big standalone episode. The second biggest reason is a heavily established market of components. A 2026 analysis found that even assembling a laptop in the US using components imported from China, again not full production, just the final assembly comes out only 6% cheaper than importing the whole thing from China. The entire production in the US comes out 14% more expensive. But the problem isn't just the fact that the labor costs more. That's an obvious one. The biggest thing is that to manufacture a laptop or any physical device, you need hundreds of components and those components are not produced in the same facility. You need a lot of suppliers within a few hundred kilometers from you. And this is something that China is simply unbeatable on. That kind of density simply does not exist in North America.

The reason Asia wins on electronics manufacturing, the reason I can't just start an electronics business in Canada, even if I put a shiny label 'made in Canada' on top of my product and people will say, "Okay, fine. We'll pay premium because it's Canadian." is because despite tariffs, however large, the manufacturing system and the ecosystem gap is so huge that you can't just beat it. What tariffs can do is actually flip the outcome in Mexico's favor. For example, US tariffs jumped from 2 to 17% between the last 2 years and that made importing into the US much more expensive. So, the benefit of importing from China or Vietnam has indeed shrunk. For semiconductors specifically, some 2026 tariff schedules run 50 to 75%. And at that level, sourcing from China becomes economically indefensible for many electronic categories. But nevertheless, for the most advanced, highest complexity electronics, semiconductors, precision PCBs, complex multicomponent assemblies, East Asia retains manufacturing edge that no tariffs can beat. Vietnam, India, and Mexico can cut their share of the market for the labor intensive and lower complexity categories. But when it comes to complex, high-speed, component dense, super modern categories where the manufacturing ecosystem advantage is simply too large for any current tariff schedule to offset, China is unbeatable at this point. And this is why despite the tariffs, despite import fees, we're still importing and shipping from Asia. As always, we hope this was helpful and we'll see you in the next episode. Bye.

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关键字: supply-chain maritime-shipping manufacturing-ecosystem geopolitical-risk tariff-impact