
Macadamia processing for growers · Mpumalanga Lowveld Your crop. Our responsibility.
Privately owned and grower-led, Merger Nuts processes macadamias for commercial growers across the Lowveld, Limpopo and KwaZulu-Natal from our facility at Alkmaar, near Mbombela (Nelspruit).
Why growers deliver to us Built around the grower.
Every crop represents a season of work, investment and risk.
We don’t take that lightly.
When growers entrust their macadamias to us, our responsibility is to handle that crop with the same care and commercial discipline we apply to our own.
From receiving and quality assessment through processing, grading, packing and marketing, our focus is on protecting quality, controlling costs and maximising the value of every kilogram.

- 01
Transparent grading
Our transparent grading process, efficient recovery rates, and experienced team ensure growers receive fair value for every kilogram delivered. We focus on building long-term partnerships through honesty, consistency, and performance.
- 02
Every step on record
Our ERP tracks every delivery from intake to processing, so nothing is guesswork and full traceability. Log into the growers portal anytime to see your deliveries, QC results and remittances.
- 03
A team that farms too
Agronomic and harvest-timing support from people who manage their own orchards and answer their phones.
- 04
Collected at the farm gate
Farm-gate collection means your crop reaches Alkmaar without you arranging transport. Book it before the season and we plan it around your harvest.
How delivery works From your orchard to your remittance.
Five steps, every one of them on record and visible to you.
- 01
Talk to us before the season
Tell us your hectares, cultivars and expected tonnage. We agree a delivery or collection schedule that fits your harvest.
- 02
Deliver to Alkmaar, or we collect
Bring your nuts to our facility outside Mbombela, or book farm-gate collection.
- 03
Weighed, sampled, recorded
Every load is weighed, sampled and logged on arrival. You get the numbers the same day.
- 04
Dried, cracked and graded
Moisture is brought to specification in controlled silos, then your nuts are sized, cracked and graded, with every step tracked in our ERP.
- 05
Results, remittances, payment
QC results and remittances appear in the growers portal as they happen, and you are paid on schedule.
Where we work Three provinces, one facility.
We process for commercial macadamia growers in South Africa's three main growing regions.
Mpumalanga Lowveld
Alkmaar, Nelspruit
Limpopo
Levubu · Tzaneen · Letsitele
KwaZulu-Natal
North Coast · Zululand
Facility
Portion 4, Farm Rietfontein 274 JT, Alkmaar, Mbombela, Mpumalanga 1201, South AfricaDirectionsIntake hours
07:30–16:30
Grower line
+27 13 912 5013Grower questions What growers ask us.
Delivery, grading and payment, answered plainly. More in the full FAQ.
Where can I deliver macadamias near Mbombela (Nelspruit)?
Deliver to the Merger Nuts facility at Portion 4, Farm Rietfontein 274 JT, Alkmaar, just outside Mbombela (Nelspruit) in the Mpumalanga Lowveld. Farm-gate collection is also available.
We process for commercial growers across the Mpumalanga Lowveld, Limpopo (Levubu, Tzaneen, Letsitele) and KwaZulu-Natal (North Coast, Zululand).
Do you collect macadamias from the farm?
Yes. We offer farm-gate collection, so your crop can come to Alkmaar without you arranging transport. Talk to us before the season starts so collection can be scheduled around your harvest.
What happens when I deliver my nuts?
Every load is weighed, sampled and recorded on arrival, and you get the numbers the same day. Our ERP tracks the delivery from intake through drying, cracking and grading, so every result is traceable back to your weighbridge ticket.
How is my crop valued?
On what it actually yields. Samples from each delivery are assessed for moisture, sound kernel recovery (SKR), unsound kernel and kernel quality, and those results drive what your crop is worth. The numbers are shared openly and you are paid on schedule.
What is sound kernel recovery (SKR)?
Sound kernel recovery is the mass of sound, saleable kernel expressed as a percentage of the dried nut-in-shell delivered. In South Africa it is normally reported on a nut-in-shell basis at 1.5% kernel moisture, and industry benchmarks have averaged roughly 33%.
Unsound kernel recovery (USK) is the share of kernel rejected for defects such as insect damage, mould, immaturity or discolouration. Higher SKR, lower USK and a higher share of whole kernels all raise the value of a delivery.
What moisture should macadamias be at for delivery?
Talk to us about your drying set-up before harvest. We dehusk and dry in controlled silos, bringing moisture down to specification before any shell is cracked, and deliveries are valued on a dry basis: the South African standard is nut-in-shell at 1.5% kernel moisture.
Can I see my deliveries and results online?
Yes. The Merger Nuts growers portal shows your deliveries, QC results and remittances at any time, straight from the same ERP records we work from.
Do you offer agronomic or harvest-timing support?
Yes. Our team manages its own macadamia orchards, so agronomic and harvest-timing advice comes from people who farm the same crop and answer their phones.
Next step Talk to us before the season starts.
A short conversation is the fastest way to a delivery schedule. Tell us about your orchards and we will take it from there.
Keep reading

Our process
From orchard to container
Seven steps in one facility, with full traceability from weighbridge ticket to bill of lading.
Read more
Questions
Grower FAQ
Sound kernel recovery, moisture, collection and payment, answered plainly.
Read more
About
Privately owned, grower-led
Started by Lowveld growers who wanted a processor that treats a crop the way they do.
Read more