Buyer Guide · Sourcing

How to Source Plastic Bottles from China Without Paying for the Learning Curve

Five sourcing routes compared, eight verifiable signals that a supplier is a factory, what belongs in a landed cost, and the payment and documentation decisions to settle before the purchase order.

Quick answer

The route you buy through matters more than the price you are quoted

Sourcing from China is not one decision, it is five: which route, which factory, which cost basis, which payment structure and which documents. Get the route wrong and a low unit price becomes an expensive programme.

A trading company quoting below a factory is not necessarily cheaper — it may be quoting a different resin, a different wall thickness or a different decoration method. The way to compare is to fix the specification first, then compare quotes against that specification rather than against each other.

2,000+

Stock molds to search first

5,000 pcs

Standard MOQ per SKU

3–10 days

Sampling from a stock mold

15,000㎡

Production area, two plants

200,000 pcs/day

Daily capacity

23 yrs

Export experience

Scope of this page

This guide covers the sourcing decision: which route, what to verify, how to compare cost and how to protect yourself. The manufacturing process behind the factory is on manufacturing, and the document types you should expect are on quality & compliance.

Decision 1 · Route

The five sourcing routes, and what each one actually buys you

The same product can be bought five ways. What changes is not the bottle — it is who holds the risk, who holds the engineering knowledge and who you call when a lot is wrong.

Route	What you are actually buying	Where it normally goes wrong	Best for
Direct factory	The mold, the machine time, the decoration line and the quality system that produced the part.	Fewer formats to choose from, and the factory will not always tell you which specification is the sensible one unless you ask.	Programmes with a defined specification, a real quantity, or a need for tooling and decoration.
Trading company	The same production, plus a layer of coordination, sourcing and export handling.	You cannot see which factory runs your order, so a specification change between the sample and the repeat order is hard to detect.	Fragmented orders — many SKUs, many materials — where coordination is worth more than visibility.
Sourcing agent	A person who finds and manages the factory on your behalf, usually paid on commission or a retainer.	The commission structure decides which factory gets recommended, which is not the same thing as which factory is best for you.	A first project in a category you do not know, run by someone who does.
Domestic distributor	Stock held in your own market, sold in smaller quantities with local terms.	You pay for the stock, the freight and the distributor margin, and the specification is fixed to what they chose to import.	Small volumes, urgent replenishment and market testing before a direct order.
Marketplace seller	Usually a trading account on a B2B platform, ranked by responsiveness and price.	Identity is hard to verify; the same listing can be several resellers of one factory, with different prices and different answers.	Price discovery and finding candidate factories, not for placing the order.

The practical sequence that avoids most problems is: use a marketplace to build a candidate list, verify which candidates are factories, then buy directly from one of them — with the specification fixed before the comparison starts.

Decision 2 · Specification

Fix the specification before you ask anyone for a price

Two quotes for the same bottle can differ by a third and both can be honest. They are not quoting the same object: resin grade, wall thickness, weight, decoration method and packing all move. Writing the specification down first is what makes the comparison meaningful.

Checklist

The specification sheet you write before enquiring

What the pack is

☐Product type — bottle, jar, dropper bottle, pump bottle, sprayer, or a closure on its own.
☐Material, or the requirement that decides it (clarity, opacity, heat, recycled content).
☐Capacity as the fill volume the label will claim, not the brimful number.
☐Neck finish code, or the closure you intend to fit.

What the pack does

☐What it holds: viscosity, alcohol or solvent content, pH and fill temperature.
☐How the user dispenses it: pour, press, spray, drip or squeeze.
☐Where it is sold and what the market expects: label area, shelf presence, finish.

What the order is

☐First-order quantity, expected annual volume, and whether this is a trial or a roll-out.
☐Decoration method and colour reference, or an explicit "unprinted".
☐Destination country, because it decides which documents travel with the shipment.
☐Whether new tooling is acceptable, or a stock mold is preferred.

Decision 3 · Verification

Eight signals that separate a factory from a reseller

None of these signals proves anything on its own, and a reseller can answer some of them. Together they are difficult to fake consistently, because they require physical capability rather than a sales reply.

Verification

What to ask, and what the answer tells you

A mold number on a sample you already hold

Ask for the tool number engraved on a bottle they made. A factory can read it off the tool; a reseller usually cannot produce a photograph of a mold they do not own.

Which process, specifically

Ask whether your bottle would be injection stretch blow molded or extrusion blow molded, and why. A real answer depends on your material and wall; a rehearsed answer does not.

The neck tolerance you should expect

Ask what tolerance they hold on the neck. The neck is the highest-precision feature on the part, so this is where engineering knowledge shows up first.

Whether they cut their own tools

Ask where the mold would be made. Tooling cut and maintained on site is what makes a repair a day rather than a third party queue.

What their incoming inspection covers

Ask what happens to a resin delivery before it reaches a machine. Resin identity, grade and moisture content are checked before drying, and the answer should name the records.

How they handle a non-conformance

Ask what happens when a lot fails. A written process with a root cause and a proposed resolution is a quality system; an apology is not.

Who signs the QC report

Ask to see a QC report from a previous lot with the commercial data removed. If they cannot produce one, the inspection is not documented.

What they will not do

Ask which markets or applications they decline. A supplier that never says no has not understood your requirement — we do not offer conventional biodegradable resins, for example, because they underperform in cosmetic applications.

The verification sheet we would work through ourselves is set out in detail in How to Evaluate a Plastic Packaging Supplier, including the documents to ask for and the answers that do not hold up.

Decision 4 · Cost

Compare landed cost, not unit price

Unit price is one line in a list of ten. Comparing two quotes on the unit price alone is how a cheaper quote becomes a more expensive order, because the missing lines reappear later as freight, duty, rework or waste.

Cost line	What decides it	Where buyers get caught
Resin and weight	Material, wall thickness and bottle weight within ±2% tolerance.	A lighter quotation that was never achievable on the specified wall.
Masterbatch and colour	Colour reference and whether the colour is standard or matched.	Custom colour quoted without mentioning the quantity step it requires.
Processing	Machine, cycle time, cavity count and scrap rate.	No visibility of cavity count, so the same part prices differently for no stated reason.
Decoration	Silk screen, label, hot stamp, spray coating, pad print or sleeve — each is a separate line pass.	A quoted print price that excluded the print tooling or the setup pass.
Closure and dispenser	Cap, pump, sprayer, dropper or trigger, and whether it is sourced as a matched assembly.	Bottle and closure bought separately, then found not to seal together.
Packing	Carton count, inner packing, palletisation and shipping marks.	Packing changes the freight calculation, so a cheaper pack can cost more to ship.
Tooling	Stock, modified stock or private tool; cavity count; quoted separately from unit price.	Tooling amortised invisibly into the piece price instead of being shown.
Inland and export handling	Loading point, port and who prepares the documents.	The Incoterm decides this line, and it is usually the least examined.
Freight and insurance	Volume, weight, route and mode.	Carton size decided late, after the freight was quoted on an assumption.
Duty and import charges	Destination country, tariff code and the declared value basis.	Needs your own customs broker; we do not advise on duty rates.

Three cost lines a low quote usually omits

▸Print tooling and the decoration setup pass, when decoration was specified but not separately priced.
▸The second sampling round, when the first sample needed a correction that the brief did not anticipate.
▸Inspection, packing or shipping-mark changes requested after the cartons were printed.

Decision 5 · Incoterms

Pick the Incoterm deliberately — it decides who carries the risk

The Incoterm is not a formality. It decides where your responsibility starts, who arranges freight, and what happens if the goods are damaged between the factory and your door.

Term	Your supplier handles	You handle	Choose it when
EXW	Making the goods and making them available at the factory.	Loading, inland freight, export clearance, main freight, import, duty.	You already have a forwarder you trust in China and want the cost structure visible.
FOB	Inland freight to the port and export clearance, loaded on board.	Main freight, insurance, import clearance and duty.	The usual basis for a first container shipment; the port and the load date are stated.
CIF	Freight and insurance to your port, in addition to FOB.	Import clearance, duty and inland delivery.	You want one number to your port and do not want to arrange freight yourself.
DDP	Freight plus import clearance and duty, delivered to your address.	Nothing until delivery, which is also the risk.	Sample-scale or trial shipments where the simplicity is worth the premium.

Whichever term you choose, fix the carton dimensions and the pallet plan before the freight is quoted. Freight is priced on volume as much as weight, and a carton change after the quote is the most common reason a landed cost moves.

Decision 6 · Payment

Structure the payment so the risk sits with the order, not with you

Payment terms are a commercial negotiation, not a policy we can publish as a rule, and any structure has to be agreed for your specific order. What follows is how buyers normally think about the risk rather than a standing offer.

Checklist

Before you send any money

Verify and document

☐Verify the beneficiary name on the invoice matches the company you verified as a factory.
☐Confirm the bank details through a second channel — a phone call, not a reply to the same email thread.
☐Agree in writing what the deposit releases: drawings, tooling, sampling or production.

Split the risk

☐A deposit against production and the balance against shipping documents is the usual structure; the split is negotiated per order.
☐For a first order, a paid sampling round that produces an approved physical sample reduces the size of the bet considerably.
☐Letter of credit, escrow or a platform payment term are options your bank can price for you; we do not give financial advice.

Fix the variables that move price

☐State the quote validity period, because resin markets and exchange rates both move.
☐State whether the price is fixed for the reorder, and for how long.
☐State what happens if the order quantity changes after the sample is approved.

How quotes move after they are issued — resin markets, exchange rates and validity windows — is covered in why bottle quotes expire.

Decision 7 · Documents

Settle the documents before the purchase order, not after

Documents are the part of an import that cannot be fixed by reworking a pallet. Ask for them at quotation stage and read them before the container is loaded, because a missing file at the port costs far more than the file itself.

The five things people call certificates, kept apart

Certification

Issued to the manufacturer by an accredited certification body after an audit of the management system. ISO 9001:2015 is the certification we hold. It is not a product approval.

Testing report

A measurement made by a laboratory on a specific sample or lot, with the method and the acceptance limits shown. It covers the lot tested, not the next one.

Material documentation

The resin supplier declaration of what the material is and what it complies with: safety data sheets, food-contact declarations and the grade technical data.

Recycled-content documentation

The supply-chain record behind the recycled percentage claimed on pack, for PCR and rPET or rPE content.

Compliance documentation

The file assembled for your destination market, matched to it rather than issued as a general statement. It does not replace your own regulatory filing.

Which documents your market will actually ask for, and the difference between a test report and a certification, are set out on quality & compliance. The three inspection gates behind every order — IQC on incoming material, IPQC on the running line and OQC on the finished lot — are set out in the packaging QC checklist.

Decision 8 · Design protection

Protect the design before you share the drawing

Sharing a drawing is usually the moment a project becomes real, and it is also the moment your intellectual property leaves your control. Three terms are worth agreeing in writing before any file is sent.

What to agree before sending a drawing

▸A mutual non-disclosure agreement covering drawings, artwork, formulations and volumes — signed before the files are sent, not after the sample.
▸Whether the tooling is exclusive to your programme, and what exclusivity means in practice: not resold, not reused for another customer, and held in-house.

▸Who owns the drawings, the 3D files, the print films and the mold itself, and what happens to them if the programme ends.

We sign a mutual NDA before receiving technical drawings or artwork, and a private mold built for a programme is not resold or reused for another customer. Tooling charges, ownership and any transfer terms are commercial terms and are confirmed in writing against your specific project rather than offered as a standing policy — which also means we do not advertise a free-mold programme or lifetime mold ownership.

Red flags

Signals that should stop an order

None of these is proof of bad faith. All of them are reasons to ask a second question before money moves.

What to watch for in an enquiry reply

▸A price that arrives without a single question about your specification, your quantity or your market.
▸A quote that changes between two emails without the specification changing — usually the resin grade or the wall thickness moved.
▸Bank details that change after the first invoice, or a beneficiary name that does not match the company you verified.
▸A certification claim on a letterhead that the company cannot produce as an auditable document from the issuing body.
▸Refusal to name the process, the material grade or the neck tolerance, on the grounds that it is "standard".
▸A sample that arrives with no dimensions, no weight and no statement of which material it is.
▸Pressure to place a large first order "before the resin price rises", with no sampling step offered.
▸No answer to the question of what happens when a lot fails inspection.

Next step

Send us the specification and the destination market

▸What the pack holds, and the fill volume the label will claim.
▸Material, or the requirement that decides the material — clarity, heat, opacity, recycled content.
▸Neck finish code, or the closure, pump or sprayer you intend to use.
▸First-order quantity and expected annual volume.
▸Decoration method and colour reference, or an explicit unprinted.
▸Destination country and the market it will be sold in.
▸Any deadline you are working to, so the schedule is quoted against it.

If you already hold a reference bottle or a competitor sample, send it. It can be measured rather than interpreted, and it shortens the route to a usable quotation more than any other single item.

Sourcing, tooling and contract reading

Other buyer guides

Buying custom plastic bottles →Stock mold vs custom mold →Choosing bottle capacity →Choosing bottle neck size →Matching a pump to a bottle →Requesting a packaging quote →Plastic bottle sampling →

Engineering and manufacturing detail

Bottle design →Neck and closure →Formula compatibility →Decoration →Color matching →Packaging testing →Material comparison →Injection molding →ISBM — stretch blow →EBM — extrusion blow →

Deeper reading

Find an existing bottle without new tooling →When NOT to open a private mold →Why your inquiry is not getting a good quote →Why two quotes for the same bottle differ by 30% →Why bottle quotes expire: resin, FX, validity →How to pay a Chinese packaging supplier safely →What to say in your first email to a bottle supplier →

Formats and products

Buyer Guides hub →Cosmetic bottles →Dropper bottles →Lotion bottles →One-stop capability →Quality & compliance →

FAQ

Sourcing from China: buyer questions

What is the minimum order quantity for plastic bottles from China?+

Our standard MOQ is 5,000 pieces per SKU, and custom-molded bottles or special colour matches start at 10,000. Stock-mold bottles can sometimes be supplied in smaller trial volumes with a start-up fee — ask, and we will tell you what is genuinely possible for your format rather than quoting a blanket rule.

Should I buy from a factory or a trading company?+

A factory gives you visibility of the mold, the process and the quality records. A trading company gives you coordination across many SKUs. If price is the only reason you are choosing one, you are comparing two different objects — fix the specification first, then compare.

How do I verify that a Chinese supplier is a real factory?+

Ask for the tool number engraved on a bottle they already made, the process your bottle would use and why, the neck tolerance they hold, where the mold would be cut, and a QC report with the commercial data removed. Those answers require physical capability rather than a sales reply.

What should the quotation include?+

Unit price and what it covers, tooling quoted separately, decoration and closure lines, packing, the Incoterm, the quote validity period and the sampling cost. If a line is missing, ask where it will appear later rather than assuming it is free.

Which Incoterm should I choose?+

FOB is the usual basis for a first container shipment because the port and the load date are stated and freight stays under your control. EXW is useful when you already have a forwarder you trust in China. CIF and DDP trade cost for simplicity, and DDP concentrates the risk with one party.

How much deposit should I pay?+

A deposit against production with the balance against shipping documents is the usual structure, and the split is negotiated per order. For a first order, a paid sampling round with an approved physical sample reduces the size of the bet more than any payment term does.

Do you help with customs duty and import clearance?+

We prepare the export documents and the commercial invoice for your shipment, and we can turnkey the export paperwork. Duty rates, tariff codes and import clearance in your country are handled by your own customs broker — we do not advise on them.

What documents will I receive with the shipment?+

An ISO 9001:2015 certificate on request, a QC report per lot, packing list and commercial invoice for export, and any product-specific test reports we hold. Material declarations, recycled-content records and market-compliance files are issued as documents on request, and they are evidence rather than certifications.

Send the specification, not the question

Tell us the product type, capacity, material, closure and quantity. An export engineer reads the brief, checks it against 2,000+ existing molds and replies with either a price or one precise question.

Talk to Engineering Request a Quote

Part of Buyer Guides: Sourcing, Specifying and Ordering Packaging | Shijin

Keep reading

Material, engineering and buying pages that this one sits next to.

How to Buy Custom Plastic Bottles: Four Levels of Custom | Shijin How to Choose Bottle Capacity: Fill Volume and Headspace | Shijin How to Choose Bottle Neck Size: Finish Codes Explained | Shijin How to Evaluate a Plastic Packaging Supplier | Shijin How to Match a Pump to a Bottle: Five Interfaces | Shijin How to Request a Plastic Packaging Quote: 14-Item Brief | Shijin Plastic Packaging Materials: PET, HDPE, PE, PETG, PP and PCR | Shijin

Products behind this page

Real items from the Shijin stock-mold library. Shown specifications are the published ones; a quotation is built from your own drawing and fill volume.

PETG | 300 ml | SJE-1748-300