However deep a buyer’s experience, their view still has limits.

Special parts are hard to buy not because you are not diligent enough, but because your knowledge base can cover only the few companies and industries you have worked in. What is “extraordinary” for you may well be, in Jiahon’s cross-industry service network, just another “ordinary” item a customer solved last week.

This article explains where exactly the difficulty of special parts lies, and how Jiahon’s breadth and depth turn it into routine work.

Why are special parts hard to buy?

First, a fact that makes many buyers uncomfortable: a person’s procurement view is basically “the companies they have worked at + the industries they are responsible for.” A procurement expert who has worked at three EMS plants knows SMT process consumables inside out; but if today they need a special cleaning agent used on semiconductor equipment, they have reached the edge of their knowledge. This is not a question of ability; it is a question of structure.

Information asymmetry in B2B procurement means the extra cost a company pays usually does not show up in the quotation; it is hidden in the losses from time spent searching, wrong specifications, and supply interruptions. The difficulty of buying special parts can be broken down into five structural causes:

1. Information barriers: someone has hidden this part away

Supplier information in high-tech industries is highly closed. Specifications, sources, and even supplier names are treated as core competitive advantages and are not disclosed. Even a buyer with ten years’ experience finds existing contacts useless once a cross-domain need comes up. Worse still: a material with the same chemical composition is called A in electronics, B in medical, and C in chemicals — different names, different packaging, and completely different certification requirements. You simply do not know whom to ask, or how.

2. Cross-domain blind spots: you know “the company’s procurement process,” not “the full picture of the market”

The strength of an experienced buyer is mastery of the company’s internal processes. But “the full picture of the global supply chain” cannot be seen clearly just by building up years at a few companies. The result: you may overestimate the scarcity of a part (in another industry it is actually a standard item), or underestimate the difficulty of buying it (extremely high MOQ or a very short shelf life), and make wrong judgments about schedule and cost.

3. Hard to negotiate on uncommon parts: your volume is too small for them to care

For special parts bought in small quantities and infrequently, the manufacturers or agents are simply not keen. Quotes are slow, lead times long, documents incomplete, and there is no room to compare prices. Take industrial control modules as an example: for models like the ABB AIO module DSAX110A3BSE018291R1, qualified supply sources worldwide can be counted on one hand, leaving the buyer almost no room to compare prices; once that sole supplier stops supplying, the production line faces the risk of stopping outright.

4. Details of infrequent purchases: once a year, and every time feels like starting from zero

Parts bought only once or twice a year are prone to three kinds of problems: shelf life mismanagement (buying too much and having it expire before use), incomplete specification checks (looking only at the main part number and missing the purity grade or packaging specification), and transaction terms left unagreed (acceptance criteria, certificate of origin — problems found only on arrival). These are not human errors; they are the inevitable result of having no SOP.

5. Discontinuation and succession: asking the manufacturer is down to luck

When a part is discontinued, the standard process is: write to the manufacturer → wait for a reply → compare the data sheets yourself → arrange testing. The whole process is slow and full of uncertainty. In 2023, for example, about 470,000 electronic component part numbers worldwide were discontinued (EOL), and nearly thirty percent of them had no product change notice (PCN) issued in advance (annual report from an electronic component database provider). For Siemens S7 series PLC components, for example, the European and Asian versions alone differ slightly in specifications, and with several revisions, agents in different regions may give inconsistent answers — the officially recommended substitute may not be directly usable in your process.

Jiahon’s solution: breadth and depth, neither can be missing

Facing these five structural challenges, Jiahon’s core solution is not “searching harder” but “looking from a higher vantage point.” Jiahon has long served major EMS / SMT plants, networking equipment makers, and server brands in Taiwan, as well as some semiconductor peripheral equipment makers. This service structure means that every day we do one thing: layer the special-part needs of different customers and different industries on top of each other, forming a dynamic cross-industry knowledge base.

Compiling a cross-industry map of parts

The same material has different names, different specification requirements, and different packaging in different industries. Jiahon systematically records these correspondences, so “translating terminology” is no longer your burden.

Layering each company’s “special needs”

A cleaning agent that Company A considers extremely rare may be a daily consumable on Company B’s line. A special tray that Company C uses on only one experimental line may be a main production specification in Company D’s plant. Layer “each company’s special items” together, and uncommon parts become regular items.

Building a database of model evolution

We do not only track EOL notices; we also record which successor models have been successfully brought in by which customers, under what process conditions they run smoothly, and which officially recommended substitutes have caused trouble in practice. When you come to us with a discontinued part number, what Jiahon gives you is not “we suggest you ask the manufacturer,” but a list of substitute candidates already proven by other customers.

Not only finding it, but buying it with confidence

Finding a source is only the beginning. For special parts, before confirming a quotation, Jiahon proactively checks four things with you:

Specifications and compatibility — comparing not only part numbers but all key parameters such as viscosity, purity grade, and application conditions, with the engineering department stepping in to evaluate when needed.

Shelf life and storage conditions — proactively stating the actual shelf life of the stock lot, and, based on your usage, suggesting split shipments or a package size that fits better, to avoid “finally getting it, then having it expire before it is used up.”

Supply stability — evaluating the manufacturer’s EOL status, supply plans for the next two years, and market alternatives, and giving short-, medium-, and long-term advice at the same time.

Reminders on transaction details — proactively stating MOQ, special shipping requirements, customs documents, and so on, so that your internal purchase request does not “hit a pitfall halfway.”

Three real scenarios showing how Jiahon steps in

Scenario 1: on the eve of an audit, a special chemical turns out to be missing

Used once a year, in small quantities. The previous agent stopped stocking it long ago, and the manufacturer’s MOQ is high with a lead time of months. Jiahon’s approach: immediately start a global stock search, while confirming shelf life and preparing the documents needed for the audit (CoA, CoC, SDS); if it really is hard to obtain worldwide, immediately start an equivalent-specification substitution procedure.

Scenario 2: an accessory used on old equipment for more than ten years suddenly cannot be bought

The equipment cannot stop, the spares are used up, and the design drawings cannot be found. Take vibration monitoring equipment as an example: equipment makers often use parts like the Bently Nevada 3300 XL series proximity probes and proximitors for more than ten years, and only when the spares run out do they find the previous agent stopped stocking them long ago. Jiahon’s approach: carry out “supply chain archaeology,” tracing whether the manufacturer has been renamed or acquired; if discontinuation is confirmed, help the engineering side evaluate functionally similar alternatives, or make local fixture design modifications for the old equipment.

Scenario 3: an NPI project brings in an uncommon material, and no one in-house has experience

A small foreign brand no one has ever seen appears on the specification sheet. Jiahon’s approach: use its global network to quickly locate how the material is commonly used in other industries, screen makers with a stable supply record, and provide suggested process conditions based on actual adoption experience, so your team is not “testing blind” but “testing with a reference direction.”

From procurement transactions to risk governance

Jiahon also helps customers set up:

A mechanism for inventorying uncommon parts
A standard process for discontinuation and succession
A framework for evaluating substitute materials
Risk-tiered management of key consumables

So that buying special parts no longer depends on personal experience, but becomes an institutional capability.

Closing

What looks special to you, the extraordinary in your project, may long since be the ordinary that Jiahon handles every day.

Not because we try harder than you, but because we stand at a cross-industry, cross-customer, cross-process vantage point — a view that any single purchasing department would find hard to build on its own.

Next time you meet a problem where “few people should understand this part,” you are welcome to bring the need to us.

The “Jiahon’s Unique Value Explained” series

▶ Plant-wide consolidated purchasing — one window to solve every procurement problem

Turning Procurement Problems into Routine Work: Jiahon’s Cross-Industry Supply Network