Views: 0 Author: Site Editor Publish Time: 2026-07-16 Origin: Site
Two FIBC quotations can show the same nominal capacity and still describe materially different bags.
One supplier may include a form-fit liner, sift-resistant seams, printing, pallet packing, design-type test evidence, and delivery to the named export terminal. Another may quote only an unlined bag collected from the factory. If both prices are entered into a spreadsheet as “price per bag,” the comparison is already misleading.
The correct purchasing question is not simply, “Which FIBC has the lowest unit price?” It is:
Which quotation provides the lowest controlled cost for a bag that meets the approved specification, reaches the required destination, works in the buyer’s process, and is supported by acceptable quality evidence?
This guide provides a practical method for normalizing FIBC bag quotations, identifying exclusions, calculating landed and operational cost, and choosing between suppliers without allowing price to hide a technical or commercial mismatch.
Use the following sequence rather than ranking prices immediately.
Pass | Comparison question | Decision |
|---|---|---|
1. Technical equivalence | Are all suppliers quoting the same approved bag and application? | Reject or clarify any material deviation. |
2. Commercial equivalence | Do price, quantity, packing, payment, validity, and delivery terms use the same basis? | Normalize every quote to one commercial baseline. |
3. Landed cost | What will the accepted bags cost at the buyer’s required location? | Add only the costs not included under the quoted delivery term. |
4. Operational cost | How will the bag affect filling, handling, product loss, storage, and transport efficiency? | Calculate cost per usable bag and per packed tonne, not only purchase price. |
5. Supply assurance | Can the supplier deliver the approved construction consistently and on time? | Compare evidence, change control, lead time, and recovery capability. |
Technical and compliance requirements should be pass-or-fail gates. A lower price should not compensate for the wrong electrostatic type, an unapproved liner, inadequate hygiene controls, or a design that is not qualified for the stated Safe Working Load.
A quotation can only be compared against the information supplied in the request for quotation. If each supplier receives a different drawing, sample, email thread, or verbal description, the buyer cannot tell whether a price difference comes from supplier efficiency or from a different interpretation.
Because FIBC bags can differ in body construction, lifting configuration, top and bottom design, liner, seam treatment, and electrostatic performance, a description such as “1,000 kg jumbo bag” does not define a comparable product.
Issue one RFQ package with:
A unique RFQ number and revision
Product name and intended application
Bulk density and required net fill weight
Particle form, flow behavior, and abrasiveness
Dangerous-goods status, where applicable
Food-contact or hygiene requirements, where applicable
Electrostatic risk assessment and required FIBC type
Bag dimensions, designed filling height, and tolerances
Safe Working Load and service category or safety factor
Body construction
Fabric, coating, and UV requirements
Lifting-loop construction and handling method
Top and bottom construction
Liner specification and attachment
Seam, stitching, and sift-resistance requirements
Printing, label, and document-pouch requirements
Testing and document requirements
Approved packing method
Order quantity and expected annual volume
Required delivery term, named place, and requested date
The RFQ should require suppliers to classify every line as:
Comply: included exactly as specified
Alternative: a different construction is proposed and fully described
Excluded: not included in the quoted price
An alternative may be technically useful, but it must not be hidden inside a “compliant” quotation. Buyers evaluating a new custom FIBC design should compare the alternative separately until its effect on performance, testing, filling, transport, and approval has been established.
Do not compare the headline prices until each quoted construction has been reconciled with the RFQ.
Quotation item | What must be stated | Common source of a false price difference |
|---|---|---|
Intended product | Material, bulk density, particle characteristics, and special hazards | One supplier prices for a generic product rather than the actual contents. |
SWL and service category | Rated payload and single-trip or reusable classification | Similar dimensions are quoted with different performance bases. |
Bag dimensions | Internal or external basis, filling height, and tolerances | A smaller bag uses less material but may not hold the required volume. |
Body construction | U-panel, four-panel, circular, baffle, or other design | Different constructions affect material, sewing, filled shape, and handling. |
Body fabric | Resin requirement, weave, nominal GSM, coating, and performance criteria | A single GSM figure hides differences in tape, weave, coating, or recycled content. |
Lifting system | Loop material, width, length, color, position, reinforcement, and attachment | Shorter loops or lighter webbing may not fit the buyer’s equipment or approved design. |
Top and bottom | Opening, duffle, filling spout, flat base, discharge spout, and closures | Spout dimensions, ties, flaps, or closures are omitted. |
Liner | Material, thickness, construction, dimensions, treatment, and attachment | “PE liner included” does not define a comparable liner. |
Seams and stitching | Thread, seam type, filler cord, sift-resistant treatment, and critical details | A plain seam is compared with a sift-resistant construction. |
Electrostatic design | Required FIBC type, liner compatibility, labels, and test evidence | A standard bag is quoted against a Type C or Type D requirement. |
Hygiene level | Production environment, resin policy, contamination controls, and required certification | “Food grade” is used without defining the manufacturing conditions. |
Printing and labels | Colors, sides, coverage, artwork, label material, and document pouch | Plate charges or extra print colors appear after order placement. |
Empty-bag packing | Bale, pallet, carton, wrapping, units per pack, and pack dimensions | Lower unit price creates higher inbound freight or handling cost. |
GSM is an important specification, but it is not a complete measure of FIBC strength, durability, or value.
Finished performance also depends on:
Resin and additive formulation
Tape tensile properties and elongation
Weave construction
Coating or lamination
Fabric orientation and panel design
Seam allowance
Sewing thread and stitch construction
Loop material and attachment
Reinforcement
Bag dimensions and filling profile
Manufacturing consistency
A higher-GSM quotation is not automatically better, and a lower-GSM proposal is not automatically unacceptable. The proposed construction must meet the required performance and remain within the approved design and test basis.
Ask suppliers to identify the body-fabric GSM separately from coating weight, loop weight, liner weight, and total empty-bag weight where those values are relevant. A single “bag weight” can conceal changes among safety-critical components.
Liners can create a significant price difference, but nominal thickness alone still does not establish equivalence.
Compare:
Film material and grade
Nominal thickness and tolerance
Flat tube, bottle-shaped, form-fit, or baffle construction
Dimensions and fit
Open, heat-sealed, or shaped ends
Attachment method
Perforation or venting
Barrier, food-contact, or electrostatic properties
Required cleanliness and packing
The selection should match the product and operating risk. The JEBIC guide to FIBC liners explains the main liner constructions and ordering variables that should be fixed before comparing price.
“Beyond unit price” does not mean accepting every higher-cost option. An oversized bag, unnecessarily complex liner, excessive printing, or unjustified fabric increase can add cost without improving the intended operation.
The buyer and supplier should distinguish:
Safety-critical requirements that cannot be reduced
Process requirements needed for filling, discharge, storage, or transport
Commercial preferences that can be changed without affecting performance
Supplier alternatives that require validation before adoption
Value engineering is useful only when the change is transparent, technically reviewed, and reflected in the approved specification.
After the technical construction is aligned, convert each quotation to the same commercial basis.
Every quotation should state:
Currency
Unit of measure
Quantity and price tier
Minimum order quantity
Whether the liner is included in the bag price
Whether print plates, artwork setup, testing, and documentation are included
Packing method
Delivery term and named place
Quotation validity date
Payment terms
Production lead time
Estimated shipment date or delivery window
Permitted quantity variation, if any
“USD 8.00 FOB” is incomplete unless the named port or terminal and the applicable Incoterms edition are stated. An EXW price, FCA price, and CIF price allocate costs and responsibilities differently and should not be placed in the same unit-price column without adjustment.
For containerized shipments, buyers should also confirm with their logistics provider whether the proposed delivery rule fits the actual handover arrangement. The trade term should describe the transaction accurately rather than being selected only because it is familiar.
The lowest unit price may exclude costs that appear only after the buyer requests a sample, approves artwork, or books the shipment.
Charge | Question to ask |
|---|---|
Sample | Is the sample, courier charge, and sample revision included or refundable? |
Print plates | Is the charge per color, per side, per design, or per order? Who owns and stores the plates? |
Tooling or setup | Is it a one-time charge, and what change triggers a new charge? |
Testing | Which tests are included, for which design, and is third-party testing extra? |
Certificates and declarations | Are standard documents included? What requires an additional fee? |
Inspection | Is pre-shipment inspection included, and who pays for reinspection after failure? |
Pallets or cartons | Are export-compliant pallets, wrapping, corner protection, and labels included? |
Banking | Who bears transfer, intermediary-bank, or letter-of-credit charges? |
Quantity variation | Can the supplier ship and invoice more or fewer bags than ordered? |
Storage | Is there a charge if the shipment cannot be collected by the planned date? |
Do not merely add every listed charge. First identify which items are already included under the quotation and delivery term so that the same cost is not counted twice.
Two suppliers with the same unit price may require different deposits, balance-payment dates, credit periods, or payment instruments.
Payment terms affect:
Working-capital use
Bank charges
Currency exposure
Leverage before shipment
Risk if production or delivery is delayed
The purchasing team can convert financing differences into an internal cost when they are material. It should also confirm which production, inspection, and document milestones must be completed before the balance becomes payable.
FIBC quotations may be affected by raw-material, exchange-rate, and freight changes. A quotation should therefore state:
The exact expiry date
Whether the price is fixed after order confirmation
Which assumptions can trigger a revision
The reference or formula used for any adjustment
Whether changes apply to confirmed orders or only future orders
A vague statement such as “price subject to material cost” gives neither party a controlled basis for adjustment.
Once the scope is normalized, calculate the cost at the location where the buyer actually needs the empty bags.
Use the following structure:
Landed order cost = quoted merchandise cost + all non-included origin costs + main carriage + insurance + destination charges + duty + non-recoverable taxes + inspection, banking, and other order-specific costs
The exact components depend on the agreed delivery rule, destination, customs treatment, and buyer arrangements. Use the buyer’s actual freight and import data rather than a supplier’s general estimate whenever possible.
Landed cost per delivered bag = landed order cost ÷ delivered quantity
This is more useful than the quoted unit price, but it still assumes every bag is acceptable and usable.
Landed cost per usable bag = (landed order cost + verified sorting, rework, and replacement cost) ÷ accepted usable quantity
For a new supplier, do not invent a defect rate and treat it as fact. Instead, calculate several scenarios using:
Sample and trial-order results
Independent inspection findings
Performance from comparable orders
The supplier’s agreed defect and replacement terms
This makes the risk visible without creating false precision.
Assume a buyer needs 10,000 identical lined and printed FIBCs.
Cost item | Quote A | Quote B |
|---|---|---|
Headline unit price | USD 8.20 | USD 7.45 |
Merchandise subtotal | USD 82,000 | USD 74,500 |
Required liner omitted from headline price | Included | USD 5,000 |
Printing omitted from headline price | Included | USD 1,800 |
Required pallet packing | Included | USD 1,200 |
Test/document charge | Included | USD 600 |
Non-included origin handling to the common handover point | Included | USD 1,400 |
Normalized subtotal | USD 82,000 | USD 84,500 |
Normalized cost per bag | USD 8.20 | USD 8.45 |
These figures are illustrative, not market prices. They show how a quote that appears USD 0.75 cheaper becomes USD 0.25 more expensive before the common downstream freight and import costs are added.
The exercise is valid only after confirming that the liner, printing, pallet packing, test scope, and bag construction are genuinely equivalent.
Even landed cost per usable bag does not capture how the FIBC performs during filling, storage, handling, and transport.
If two approved designs carry different verified payloads, compare:
Packaging cost per packed tonne = landed cost per usable bag ÷ actual net payload per bag in tonnes
For example, a bag that costs less per piece may cost more per tonne if it cannot safely or practically carry the required product quantity. Use the approved SWL and the payload achieved with the actual bulk density and filling process. Never increase fill weight above the marked SWL to improve the calculation.
A small design difference can affect labor and throughput. During sample trials, record:
Time to place the bag on the filling equipment
Whether the filling spout fits and seals correctly
Ease of accessing and positioning the loops
Number of operator interventions
Liner inflation, twisting, or collapse
Dust or product leakage
Time required to close the top
Filled weight variation
Filled footprint and stability
Time and labor required for discharge
Residual product after discharge
The quotation with the lowest bag price can become more expensive if it slows a high-volume filling line, requires extra ties, causes repeated liner adjustment, or leaves more product in the bag.
Ask each supplier for:
Bags per bale, pallet, or carton
Number of packs per container
Pack dimensions and gross weight
Pallet material and dimensions
Stackability of packed empty bags
Moisture and dust protection
Container loading plan
Unloading equipment needed at destination
A different folding or packing method can change empty-bag freight, warehouse space, and handling labor. “10,000 bags per container” should be supported by an actual packing configuration, not a rough estimate.
The FIBC design can also affect the buyer’s outbound supply chain through:
Filled footprint
Bulging
Pallet overhang
Container or truck utilization
Warehouse stacking arrangement
Load stability
Handling access
Product settlement
A baffled bag may justify a higher price when its filled shape increases verified load efficiency or improves stability. It should not receive an assumed logistics credit until the buyer has checked the actual product, bag dimensions, pallet, route, and loading pattern.
For high-volume or high-risk applications, compare:
Total packaging-related cost = landed bag cost + filling and handling cost + allocated storage and transport cost + verified quality-loss cost + disruption cost
Potential disruption costs include:
Production downtime caused by late or unsuitable bags
Sorting or repacking
Product loss and cleanup
Customer rejection
Expedited replacement shipments
Additional warehouse handling
Reinspection
These costs should be based on records or controlled scenarios. They should not be used to inflate a preferred supplier’s score without evidence.
A quotation is also a promise that the supplier can reproduce the approved design. When comparing FIBC bag manufacturers, buyers should examine how each quotation connects the offered price to the manufacturing site, controlled specification, applicable test evidence, routine inspection, and shipment traceability.
Specify which documents are required:
Signed technical specification
Approved drawing and revision
Bill of materials or controlled component list, where appropriate
Sample approval record
Design-type test report or other performance evidence
Certificate of conformity
Batch or final inspection report
Raw-material declarations
Food-contact declarations, where applicable
Hygiene or certification evidence, where applicable
Electrostatic test evidence, where applicable
Dangerous-goods approval documents, where applicable
Traceability information
Packing list and container loading details
Do not assume that “certificate included” covers all of these records. The quotation should identify the document, issuing organization where relevant, design scope, and delivery point in the order process.
The test evidence should identify the relevant construction, SWL, service category, dimensions, loops, seams, top and bottom design, and liner where applicable. A report for a similar-looking bag may not cover the quoted design.
ISO 21898:2024 addresses materials, construction, design, type testing, and marking for FIBCs used with non-dangerous goods. Dangerous-goods, electrostatic, food-contact, and customer-specific applications can introduce other requirements. The supplier should state the exact basis used rather than promising that the bag is simply “ISO approved.”
Ask what happens if the supplier wants to change:
Resin or additive source
Fabric specification
Coating
Loop material
Sewing thread
Liner material or thickness
Component dimensions
Manufacturing site
Critical production process
Packing method
The quotation or quality agreement should define which changes require notification, approval, new samples, or retesting. An attractive price has limited value if the supplier can substitute critical materials without review.
“Lead time: 25 days” may start from the inquiry date, deposit receipt, artwork approval, sample approval, or final document release. Clarify:
What event starts the lead time
Whether material procurement is included
Whether sample and testing time is included
Production duration
Inspection and release time
Packing and container-booking time
Peak-season constraints
Partial-shipment options
Recovery plan for delay
The buyer should compare the complete order-to-availability timeline, not only factory production days.
A weighted scorecard is useful only after non-negotiable requirements have been passed.
Mark the quotation as pass, clarification required, or fail for:
Application and product compatibility
SWL and service category
Electrostatic safety
Dangerous-goods requirements
Food-contact and hygiene requirements
Approved construction
Required test and compliance evidence
Critical dimensions and tolerances
Do not use a high commercial score to offset a failed safety requirement.
Confirm that all remaining quotes have been converted to:
The same quantity
The same currency or exchange-rate date
The same technical scope
The same packing basis
The same delivery point
The same included documents and services
The same cost period
The following weighting is only an example. Buyers should adjust it to product and supply risk.
Category | Example weight | What to score |
|---|---|---|
Technical fit | 30% | Compliance, process fit, specification clarity, and validated alternatives |
Quality and compliance assurance | 20% | Applicable evidence, traceability, change control, and inspection plan |
Normalized landed cost | 20% | Complete cost at the common delivery point |
Operational and logistics cost | 15% | Filling, discharge, packing density, handling, and filled-load efficiency |
Delivery and supply continuity | 10% | Lead-time reliability, capacity, communication, and recovery plan |
Commercial terms | 5% | Payment, validity, warranty, claims, and price-adjustment clarity |
Unit price remains important, but it sits inside a wider cost and risk decision.
Before selecting a supplier, ask:
Please confirm the RFQ and drawing revision used for this quotation.
List every deviation, alternative, and exclusion.
Is the price for the complete bag, including the specified liner and accessories?
Confirm SWL, service category or safety factor, dimensions, and tolerances.
State fabric, coating, loop, thread, seam, and liner specifications.
Identify the manufacturing site included in the quotation.
Which test reports and certificates cover the quoted construction?
Which routine inspection and shipment documents are included?
State the Incoterms rule, edition, and named place.
List all sample, plate, setup, testing, packing, inspection, and document charges.
Confirm bags per pack, pack dimensions, packs per container, and gross shipment volume.
State the quotation expiry date and any price-adjustment mechanism.
Define the event that starts the production lead time.
State payment milestones and conditions for final payment.
Confirm the policy for quantity variation, nonconforming bags, replacement, and claims.
Identify changes that require buyer notification or approval.
The supplier’s response should become part of the commercial and technical order record rather than remaining in an informal chat.
Investigate further when:
The bag is described only by capacity and dimensions.
“Same as sample” is used without a controlled specification or sample ID.
The supplier marks full compliance but does not list construction details.
A lower price is based on a material or GSM change that was not identified.
The liner is described only as “PE.”
The electrostatic type, liner compatibility, or grounding requirement is unclear.
Food-grade or UN claims are not connected to the quoted design and production site.
The test report will be supplied only after mass production, with no pre-order review.
The trade term has no named port, terminal, or place.
Origin, documentation, pallet, or inspection costs remain “to be confirmed.”
Quotation validity is open-ended or subject to an undefined material surcharge.
Container quantity is stated without pack dimensions or a packing plan.
Lead time does not state its starting event.
The sample construction can differ from production without written approval.
The supplier will not provide an itemized deviation and exclusion list.
One unclear item does not automatically disqualify a supplier. It does mean the buyer should resolve the gap before treating the quote as firm and comparable.
Before approving a purchase order, confirm:
Every supplier received the same RFQ revision.
All deviations and alternatives are listed.
The application and filling product are correctly understood.
SWL and service category or safety factor match.
Bag dimensions and tolerances use the same basis.
Body construction, fabric, coating, and UV requirements match.
Loops, reinforcement, seams, and thread match.
Top, bottom, closures, ties, and accessories match.
The liner is fully defined and included.
Electrostatic, hygiene, food-contact, and dangerous-goods requirements are addressed where applicable.
Printing, labels, document pouch, and artwork charges are included.
The bag packing method and container quantity are confirmed.
Currency, quantity tier, MOQ, and quotation validity are stated.
Delivery term, edition, and named place are stated.
One-time and conditional charges are included in the comparison.
Payment-term effects have been reviewed.
Landed cost is calculated at one common location.
Cost per usable bag is tested under realistic scenarios.
Cost per packed tonne is calculated where payload differs.
Filling, discharge, handling, and logistics effects have been trialed or estimated from evidence.
Test and compliance documents match the quoted design.
Manufacturing site and traceability expectations are known.
Material and design changes require controlled review.
Lead-time start, inspection, release, and shipping stages are clear.
Nonconformity, replacement, warranty, and claim terms are agreed.
Mandatory technical requirements passed before price scoring.
FIBC quotation comparison is an exercise in normalization, not simply price ranking.
First confirm that each supplier is offering the same approved construction. Then place the quotations on the same quantity, packing, delivery, and document basis. Only after those two gates have been passed should the buyer compare landed cost, cost per usable bag, and cost per packed tonne.
The strongest decision also considers how the bag affects filling, discharge, product containment, storage, transport efficiency, and supply continuity. A more expensive bag can produce a lower operational cost, while a higher-priced option can also be unnecessary if its added features do not solve a defined requirement.
Jebic Packaging can review an application, buyer specification, and existing quotation format to prepare a clearly itemized FIBC proposal. Providing the product, bulk density, fill weight, handling method, liner needs, delivery point, and required evidence allows the quoted construction and commercial scope to be compared on a controlled basis.
It should identify the RFQ and drawing revision, complete bag construction, SWL, service category or safety factor, dimensions, fabric, loops, top and bottom, liner, seams, printing, packing, quantity, delivery term and named place, payment, validity, lead time, testing, documents, exclusions, and one-time charges.
Not necessarily. The lowest price may exclude a liner, printing, testing, pallets, origin handling, or other required items. It may also represent a different construction. Compare only after the technical and commercial scope has been normalized.
No. GSM is one important variable, but performance also depends on resin, tape properties, weave, coating, dimensions, seams, loops, reinforcement, thread, and manufacturing control. Compare the complete approved design and its supporting evidence.
Incoterms rules allocate specified costs, tasks, and risks between seller and buyer. Quotes using EXW, FCA, FOB, CIF, DAP, or DDP therefore may include different cost components. Normalize them to the same named delivery point and avoid double-counting included charges.
Use several metrics: normalized unit price, landed cost per delivered bag, landed cost per usable bag, and packaging cost per packed tonne. For high-volume operations, also compare filling, handling, storage, transport, product-loss, and disruption costs.
Only after the supplier describes the change and the buyer confirms that it meets the application, performance, compliance, and process requirements. Safety-critical or approval-controlled changes may require samples, testing, and formal specification revision.
Use sample trials, pilot orders, inspection results, comparable order history, and several transparent cost scenarios. Keep assumptions separate from confirmed data and update the model when actual performance becomes available.
No. A baffle design may improve filled shape or load efficiency, but the benefit depends on product behavior, bag dimensions, pallet configuration, handling, and transport route. Validate the effect through a filling and loading trial.
Select the supplier after mandatory requirements pass, deviations are closed, samples or trials are approved when needed, costs are normalized, evidence is reviewed, and commercial terms are clear. The purchase order should reference the final approved documents.
