INDUSVINA – Acacia Wood Chips for Pulp & Paper

From Vietnam acacia plantations to the pages of everyday life.

1. From wood to the modern paper industry

Wood has accompanied human development for centuries. Beyond construction, tools and furniture, it is also an important raw material for the pulp and paper industry, whose products are present throughout modern life.

From books, notebooks, printing and writing paper to cartons, transport packaging, tissue and industrial paper grades, these familiar products originate from a raw-material chain built around cellulose fibers contained in wood.

Within this chain, wood chips are an important intermediate raw material. Chipping and screening convert plantation wood into pieces with dimensions more suitable for industrial pulp production.

Wood → Wood Chips → Pulp → Paper

2. Acacia – a renewable plantation resource

Acacia (Acacia spp.) is widely used in plantation forestry and wood processing. When managed and harvested in planned rotations, plantations can be harvested and replanted to create successive raw-material cycles.

The value of an acacia tree does not necessarily lie in a single product. After harvesting, stems can be sorted by dimensions, form and quality. Suitable logs may be directed to sawn wood and higher-value processing, while smaller stems, tops, curved material and other suitable wood can become chipwood for pulp production.

Acacia plantation → Harvesting → Raw material sorting

• Sawlog: sawn wood / furniture
• Chipwood: wood chips / pulp

3. From acacia tree to wood chips

To become suitable pulpwood feedstock, acacia is not simply cut into small pieces. It passes through a controlled sequence from incoming raw material to finished chips.

Harvested wood is sorted, transported to the plant, checked for source and condition, and cleared of soil, stones, metal and foreign matter before feeding to the chipper. Chips then pass through screening; oversize may be re-chipped, fines are separated as required, and acceptable material proceeds to quality control.

1. Raw chipwood
2. Cleaning and foreign-matter removal
3. Feeding
4. Chipping
5. Screening
6. Oversize re-chipping
7. QC and finished wood chips

4. Chip quality – a key factor in raw-material consistency

One important characteristic of wood chips for pulp production is size distribution. Excessively large or thick chips may process unevenly during pulping, while excessive fines can also affect material utilization and process performance.

Accordingly, chips are screened and inspected against customer-specific requirements. INDUSVINA focuses on key parameters including Chip Size Distribution, Oversize, Fines, Bark Content, Moisture Content and Foreign Matter.

Parameter	Control purpose
Size Distribution	Chip consistency
Moisture	Water content of shipment
Bark	Bark control
Fines	Fine fraction control
Foreign Matter	Soil, stone, metal, plastic, foreign material

5. Moisture, traceability and lot acceptance

Fresh wood chips naturally contain substantial moisture. In large-volume trade, moisture is therefore not only a technical parameter but also relates directly to the actual wood substance in the shipment. Sampling method, test method, moisture basis and contractual measurement point should be agreed in the Contract/PO/Technical Specification.

An export wood-chip lot should not be identified by weight alone. Records should maintain traceability from shipment to stockpile, production batch, raw-material lot, truck delivery and corresponding forest source.

Forest / plantation source → Forest lot → Raw material lot → Production batch → Finished stockpile → Sampling & final QC → Shipment lot / B/L

6. From wood chips to pulp and everyday paper products

At the pulp mill, wood chips enter a new technological chain. Depending on pulp grade and mill process, chips are treated to liberate and recover cellulose fibers, followed by cleaning and pulp preparation before paper formation.

Acacia tree → Wood chips → Pulping → Pulp fiber → Paper making → Paper • Carton • Packaging • Tissue

The wood-chip value chain involves a remarkable transformation: a plantation tree becomes millions of chips; fibers recovered from those chips are then converted into paper and paper-based products serving daily life and industry.

7. INDUSVINA – from Vietnam plantations to the global paper industry

For international industrial buyers, sufficient quantity alone is not enough. Buyers need to understand where raw material comes from, how it is harvested and transported, how chips are produced and screened, how size, moisture, bark, fines and foreign matter are controlled, and whether the shipment is traceable.

INDUSVINA develops its acacia wood-chip supply chain around four elements: SOURCE – QUALITY – TRACEABILITY – DELIVERY. Raw materials are lot-identified; production links Raw Material Lots to Production Batches; quality is controlled against order requirements; and finished lots are RELEASED only after agreed acceptance criteria are satisfied.

INDUSVINA aims to connect VIETNAM PLANTATIONS → RAW MATERIAL → PROCESSING PLANTS → QUALITY CONTROL → LOGISTICS → INTERNATIONAL PULP MILLS.

INDUSVINA – From Vietnam Acacia Plantations to Global Pulp & Paper.

Applications & selection – Acacia wood chips

Application first → specification second

What are acacia wood chips used for?

Acacia wood chips are an industrial intermediate raw material produced from plantation acacia and supplied mainly to pulp and paper mills and selected wood-processing industries.

The value of wood chips is not simply that the wood has been reduced in size; it also depends on wood species, source, size distribution, moisture, bark, fines, foreign matter and the ability to maintain consistent commercial-scale quality.

There is no single best chip specification for every mill.

Primary application – pulp production

This is the primary application for INDUSVINA acacia wood chips. Chips are processed at pulp mills to liberate and recover cellulose fibers, which then become feedstock for multiple paper grades.

Acacia wood → Wood chips → Pulping → Pulp fiber → Paper

Factors to control include chip size distribution, chip thickness, oversize & fines, bark content, moisture content and foreign matter.

Printing, writing paper and tissue

After conversion into suitable pulp, wood fibers may enter the raw-material chain for printing paper, writing paper, office paper, books, notebooks and related products.

Depending on mill technology and furnish design, wood pulp may also be used in tissue, facial tissue, toilet tissue, napkins, paper towels and other consumer paper products.

INDUSVINA supplies wood chips as fiber feedstock to pulp mills; final paper quality also depends on pulping, bleaching, papermaking technology and mill furnish design.

Acacia wood chips → Pulp mill → Paper / Tissue

Packaging paper, carton and market pulp

Wood is an important fiber source for paper packaging. Depending on pulp type, furnish and mill technology, wood fibers may enter production chains for packaging paper, paperboard, containerboard, carton and corrugated packaging.

Some wood chips are supplied to market-pulp mills, where pulp is produced and sold onward to other paper mills for conversion into final paper products.

Vietnam acacia plantation → Acacia wood chips → Pulp mill → Market pulp → Paper mill → Final paper products

Other industrial applications – specification must match the application

Depending on dimensions, quality and processing method, wood chips may also be considered for wood-based panels, fiberboard/MDF feedstock, biomass/energy applications and other fiber-processing routes.

However, all applications should not be grouped under one specification. Chips for pulp & paper, panels and biomass have different end uses and technical requirements.

Application first → specification second

Select by wood species and chip dimensions

The first step is to define wood species. For this product, the target raw material is Acacia spp. Where the contract requires acacia, uncontrolled mixing with other species should be prevented.

Chip dimensions should not be judged from a few visually attractive pieces. A representative sample should be assessed for Oversize %, Acceptable Chips %, Fines % and other fractions required by the Buyer Specification.

Chip thickness also matters. Excessively thick chips and excessively thin/fine material should be controlled according to mill requirements.

Select by moisture – do not compare USD/MT alone

Moisture is one of the most important technical and commercial parameters of wood chips. One tonne of fresh chips is not one tonne of dry wood substance because shipment weight contains both wood solids and water.

WET WEIGHT = WOOD SOLIDS + WATER

Accordingly, two 20,000 MT shipments with different moisture contents may contain different amounts of dry wood substance. Price comparison should therefore consider PRICE/MT + MOISTURE + MEASUREMENT BASIS together.

The contract should define sampling, test method, moisture basis, measurement point and treatment of out-of-specification results.

Select by bark, fines and foreign matter

Bark is a natural component of raw timber, but Bark Content should be controlled to mill requirements. Where the Buyer requires low-bark chips, control must begin at raw-material preparation rather than only at Final QC.

Fines arise during chipping, handling and transport. Some are naturally generated, but excessive fines reduce shipment uniformity. The CHIPPING → SCREENING → FINES SEPARATION → QC chain should be continuously controlled.

Soil, sand, stones, metal, plastic, waste and non-wood materials should be controlled from forest source through transport, raw-material yard, feeding, chipping, screening, stockpile and loading.

Select by source and traceability

For international buyers, an increasingly important question is: Where does the wood come from? A sound shipment is not defined by a COA alone; data should remain linked from forest source to shipment.

Forest source → Forest lot → Truck / weight → Raw material lot → Production batch → Finished lot → Shipment / B/L

Buy a controlled industrial raw-material lot – not merely a pile of chips.

Select by supply capability

For bulk cargo, an attractive chip sample alone does not prove supply capability. The supplier must be able to maintain quality when volumes scale to thousands or tens of thousands of tonnes.

• Forest and raw-material supply
• Harvesting capacity
• Chipper capacity
• Screening capacity
• Stockpile capacity
• QC capability
• Truck & inland logistics
• Port handling & vessel loading

The ability to maintain specification throughout the shipment is as important as nominal production capacity.

Select by contract and acceptance method

Before trading, both parties should clearly define Specification, Sampling Method, Test Method, Moisture Basis, Quantity Determination, Tolerance, Inspection Point, Third-party Inspector, Acceptance/Rejection Rules and Price Adjustment where applicable.

A good specification without an agreed measurement method can still create disputes. Technical criteria and acceptance methods should therefore be designed together.

SPECIFICATION + SAMPLING + TEST METHOD + ACCEPTANCE RULE = CLEAR CONTRACT

INDUSVINA – define the right product before discussing price

There is no single wood-chip grade that is best for every mill. The right product is the one that fits the mill's raw-material strategy, process technology, final product and acceptance criteria.

What will you produce? → What chip specification does your mill require? → How will it be measured and accepted? → Then we define the right supply.

INDUSVINA aims to connect the right raw-material source, specification, control method and delivery solution for each project.

INDUSVINA – SOURCE • QUALITY • TRACEABILITY • DELIVERY