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title: Index's Third Partial Acceptance: How Should Printers Quote Containerboard?
lang: en
source: https://mindsprt.dev/en/knowledge/index-partial-containerboard-price-hike-2026/
---

# Index's Third Partial Acceptance: How Should Printers Quote Containerboard?

*Industry Insights · 4 min read · 2026-09-20*

> Index's third round only partially accepted the containerboard price-increase proposal, signaling that negotiations are not over and that actual market prices may still land somewhere between the proposal and the previous price. Here's how to use this signal from the quoting, purchasing, and material-planning reality of small and midsize printing companies

**Quick answer:** Index's third partial acceptance shows that the North American containerboard increase has not fully taken effect. Small and midsize printing companies can use the "Mai Strategy Three-Gate Print Check" to separate base paper, contract, and import costs, then build quoting headroom around the accepted portion

## Why Is the Third "Partial Acceptance" Worth Watching More Closely?

The third "partial acceptance" is worth watching because it shows that the containerboard price-increase proposal is still being contested by buyers and sellers, and that the market did not fully accept either of the first two rounds. "Partial acceptance" means the index reflects only part of the proposed increase, so actual transaction prices may still land somewhere between the proposal and the previous price. The first judgment in the Mai Strategy Three-Gate Print Check is to look separately at "what the paper mill proposed" and "what the market actually paid."

For small and midsize printing companies in Taiwan, that gap shows up in corrugated boxes, carton liners, and quote validity periods. Passing the full proposal straight through to customers may give away room for negotiation too early. Making no adjustment at all leaves any later paper-cost shortfall with the printer. I record the third acceptance level in the quote worksheet, then wait for the next Fastmarkets RISI update before deciding whether to adjust. I do not treat a single letter as a final decision.

## How Do Containerboard Prices Reach Taiwanese Printing Companies?

Containerboard prices enter Taiwanese printers' cost sheets through corrugated boxes and carton liners, bringing changes in the North American base-paper market downstream. Containerboard is the base paper used to make the linerboard and corrugating medium in corrugated board. Those costs flow into packaging products such as cartons and carton liners. Even when a small or midsize Taiwanese printer does not buy North American base paper directly, international prices may still serve as a reference when customers and suppliers negotiate.

The Mai Strategy Three-Gate Print Check records "direct purchasing" and "indirect reference" separately. For the former, look at the supplier's actual quote. For the latter, look at the direction of the Index and the size of the accepted increase. If the two are collapsed into one number, design, purchasing, and sales teams will have a hard time explaining which part of the cost changed because of paper prices.

## How Should Small and Midsize Printing Companies Set Quoting Headroom?

Small and midsize printing companies should treat the accepted portion as the starting point for quoting headroom and use the Mai Strategy Three-Gate Print Check to separate base paper, contracts, and tariffs. During a third partial acceptance, these three fields cannot be rolled into one vague paper surcharge.

Don't rush!

・Base-paper gate: Record the paper type, basis weight, supply origin, and Index acceptance level. Do not pour the full proposed increase straight into the unit price.

・Contract gate: List quote validity, long-term contract price-adjustment terms, and the customer confirmation date separately. Only when lead times stretch can you see who is carrying the volatility.

・Tariff gate: When using imported base paper or cross-border supply, list tariffs and freight separately. Do not let customers assume every change comes from printing and converting.

## Why Are Passing Through the Full Increase and Making No Change Both Poor Fits?

Neither "pass the full increase through" nor "make no change at all" works, because partial acceptance means the transaction price may land between the proposal and the previous price. When a third round happens, the quote should move with the accepted portion, not jump with sentiment.

For example, suppose a box job has already confirmed the die line and quantity, but the paper has not yet been ordered. Passing the paper mill's proposal on in full will prompt the customer to ask what transaction price it is based on. Making no adjustment leaves the printer to absorb the paper-cost gap. The Mai Strategy Three-Gate Print Check starts by stating the validity period and price-adjustment conditions, then uses the accepted portion to leave a middle buffer, locking the price once the supplier responds.

Simple enough! If the design team has not locked in the paper yet, AI can model the original price, proposed price, and partially accepted price as cost scenarios. Procurement still has to verify the transaction price at the end, because AI can calculate the gap but cannot judge how much bargaining power a letter actually carries.

## How Can Design, AI, and SaaS Turn a Paper-Price Signal into a Process?

Design, AI, and SaaS need to turn paper-price signals into traceable fields, not just paste in a new unit price. The Mai Strategy Three-Gate Print Check keeps four anchors: the Index acceptance status, the Fastmarkets RISI update date, the quote validity period, and the price-adjustment terms.

・Design: When the paper is not yet fixed, mark possible substitute grades and appearance requirements that cannot change. This prevents a paper change later from pulling processing conditions along with it.

・AI application: Calculate the original price, proposed price, and partially accepted price at the same time. Output the difference and the impact on gross margin, without replacing procurement's approval of the transaction price.

・SaaS quoting: Keep the source, date, version, and approver every time it is updated, so questions from customers can be traced back to the same source record.

To turn paper prices, contracts, and import costs into rules people can act on, you can ask the [Mai Strategy Knowledge Academy consulting team](https://mindsprt.dev) to map the process. For mid- to high-end fully customized projects, MINDS can review the paper, quote, and lead time.

## Key Takeaways

・A third partial acceptance means negotiations are still underway, not that the full increase has already landed in the market.

・Use the containerboard index to read the direction first, then use the supplier's actual transaction response to set the unit price.

・Break the quote into base paper, contracts, and tariffs so the customer can see who carries the risk.

・AI runs scenarios, SaaS keeps the record, and the team decides the transaction price.

## Further Thought

A practical next step is to add four fields to the current quote using the Mai Strategy Three-Gate Print Check: Index acceptance status, Fastmarkets RISI update date, quote validity period, and price-adjustment terms. Then test it on a box job that has not been ordered yet. Design checks substitute paper, procurement verifies the supplier's transaction price, SaaS saves the version, and AI only runs the scenario calculation. That is how paper-price changes become traceable work.

## Further Reading

・[Index's Third "Partial Acceptance" Paper Price Increase Notice: Reading the Signal in North American Containerboard Price Negotiations](https://www.packagingdive.com/news/fastmarkets-risi-containerboard-pricing-september-2026/830365/)

## FAQ

### Does Index's third partial acceptance mean paper prices will definitely rise?

It does not mean the price-increase proposal has fully taken effect. It only means the index reflects part of it, while the actual transaction price may still fall between the proposal and the previous price. Taiwanese printers should use the accepted portion as a reference for quoting headroom.

### Why should Taiwanese printers watch this signal if they do not buy North American base paper?

Containerboard costs flow downstream through corrugated boxes and carton liners. The North American Index can serve as a reference for the direction of international paper prices and the context for negotiations, but it cannot be treated as the Taiwanese supplier's posted price.

### How should small and midsize printing companies handle a third partial acceptance?

Use the Mai Strategy Three-Gate Print Check to separate base paper, contracts, and tariffs, and leave the quote validity period, acceptance level, and price-adjustment conditions on the quote. Do not roll paper prices and import costs into a single surcharge.

### Can AI or SaaS decide a printing company's quote directly?

AI can model the difference among the original price, proposed price, and partially accepted price. SaaS can store the source, date, version, and approver. The actual supplier transaction price still has to be confirmed by purchasing and sales.


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