Sheep: Wool, Mutton and the Predation Problem · Lesson 52
Wool Marketing, Certification and the Karoo Lamb GI
Settles how a clip is valued and sold, what certification realistically earns, and what a working SA place-based premium looks like.
By the end of this lesson you can
- Convert a greasy fleece into a gross rand figure and then into a net one
- State what wool certification does and does not guarantee about price
- Describe a place-based premium that is legally defined and enforceable
#The number on the market report is not the number on your cheque
Cape Wools reports the wool price in cents per kilogram clean. In the 2025/26 season the SA Merino indicator ran from a low of 17 504 c/kg clean to a high of 27 066, averaging 22 542 — that is R175.04, R270.66 and R225.42 per kilogram (Cape Wools market report, accessed 28 July 2026).
Two hundred and twenty-five rand a kilogram. Hear that for the first time and you do the sum in your head — five kilograms off a ewe, more than a thousand rand a head — and start costing a shearing shed.
You are wrong by roughly half, and the reason is the single most important thing in this lesson. The indicator is quoted clean. You are paid for the fibre that survives scouring, not for the weight that leaves your shed. Clean yield in South Africa sits around 50–51%, where 60% and up is needed to class as light (Farmer's Weekly). That yield figure, and the fleece weights used later in this lesson, come from industry and press reporting rather than a Cape Wools statistical release — treat them as indicative and check your own test certificates. The direction is not in doubt.
#What the buyer is actually buying
Three things set the price of a bale before anything you say about your grazing is considered.
Fibre diameter. The market splits at fine below 19.5 microns (luxury), medium 20 to 25 microns (classical apparel) and strong above 26 microns (interiors) (Agribook). These are different markets with different buyers and different cycles, not a single quality ladder. SA Merino wool averages around 19.8 microns with a national range of roughly 14 to 23 (Farmer's Weekly) — which puts most of the national clip right on the line between the fine and the medium market, where one micron changes which buyer is bidding.
Clean yield. At around 50–51% against the 60% needed to class as light, this is where South Africa loses money quietly and continuously. It is measured on your own tested sample, not assumed.
Contamination and clip preparation. A single strand of baling twine, polypropylene or coloured fibre is what the industry counts as a contamination fault, and it is the thing a national body has spent more than a decade campaigning against.
#From fleece to cheque, worked
Take one Merino ewe with an indicative 4.5 kg greasy fleece at 51% clean yield. That is 2.3 kg clean.
At the 2025/26 season average of R225.42/kg clean, she grosses R518. At the season's low of R175.04, the same fleece off the same ewe grosses R402. At the season's high of R270.66, R622.
R518 is a gross figure. Off it come shearing, classing, transport to the broker's store, broker commission and statutory levies.
Here is an honest gap this course will not paper over. There is no published, current South African table of those five costs that this lesson can hand you. You have to get them yourself: a quote from your shearing contractor, a fee schedule from your broker, and the levy line off last season's account sale. Until you hold those three documents you do not have a net wool figure — you have a gross one, and gross figures are how enterprises get started that should not have been.
#Certification: what it buys, and what it does not
South Africa has one structural advantage in the global welfare-certified wool market: mulesing is not practised here (NWGA). That removes the single biggest welfare obstacle parts of the Australian clip face at audit.
Do not oversell it. The Responsible Wool Standard is a Textile Exchange standard open to any non-mulesed operation that passes audit, including Australian ones, and it requires chain of custody all the way to the product carrying the claim (Textile Exchange). Not mulesing lowers your cost and difficulty of qualifying. It is not an exclusive licence.
Alongside RWS, Cape Wools runs the Sustainable Cape Wool Standard, built on animal welfare, environmental custody, social ethics and labour, and business practice (Cape Wools). Cape Wools has since described work on a successor standard, Sustainable Wool South Africa (Cape Wools) — so before you build a marketing plan around a standard's name, confirm which one is current and which one your broker's buyers are actually asking for.
One more claim to handle carefully, because it circulates in the trade press and it is wrong. South Africa is not the world's second-largest wool producer. Agribook's own list places Australia, China, the USA, New Zealand and Argentina ahead, with Turkey, Iran, the UK, India, Sudan and South Africa following (Agribook). The narrower, sourced and more useful claim is that after Australia, South Africa is the second-largest exporter of wool into China. Teach that one. It is also the sentence that sets up the next lesson.
#Karoo Lamb: a premium with a gazette behind it
Everything above is a premium you must chase through an auction. There is one South African example of the other kind — a name whose meaning is fixed by a gazetted specification rather than by a buyer's goodwill.
Read what that specification actually does, because it is the most instructive document in South African sheep marketing.
The boundary is a vegetation map, not a magisterial district. All three of born, raised and slaughtered must happen inside it, which closes the loophole of trucking lambs in to finish. Free range is a condition, so the premium does reward keeping animals on veld. And then the last line is pure carcass classification: age, mass, fat, conformation, damage. A lamb that grazed the right shrubs on the right farm and then came in at conformation 2, or at 26 kg, is not Karoo Lamb.
#What to do with this
Before the next shearing: pull your last account sale and find your actual clean yield and micron, because those two numbers and not the headline indicator are your business; get the shearing, classing, transport, commission and levy figures in writing so you hold a net rand per ewe rather than a gross one; and ask your broker for the certified-versus-uncertified spread on your micron over three seasons, then let that number decide the audit.
#Check yourself
3 questions — answers explained as you go
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1The Cape Wools SA Merino indicator averaged 22 542 c/kg for the 2025/26 season. Your ewes cut 4.5 kg of greasy wool each. What is the most defensible estimate of gross wool income per ewe?
Why: The indicator is cents per kilogram clean. At an indicative 51% clean yield a 4.5 kg greasy fleece is about 2.3 kg clean, so 2.3 × R225.42 ≈ R518 gross — before shearing, classing, transport, commission and levies. Commission is a real deduction but it is nowhere near half. The most common and most expensive beginner's error in SA wool is multiplying a clean price by a greasy weight. -
2A buyer asks whether your RWS-certified wool will fetch a premium. What is the honest answer supported by Cape Wools' own published wording?
Why: Cape Wools' own statement on price is deliberately conditional. Not mulesing lowers the cost and difficulty of qualifying for RWS; it does not create a guaranteed premium, and RWS is open to any non-mulesed operation worldwide. Treat certification as an option to price with real numbers from your own broker, not a payoff to assume. -
3A farmer near Beaufort West buys weaned lambs from a Free State producer, finishes them on Karoo veld and slaughters them locally at 22 kg carcass, age class A, fat 3, conformation 4. May the carcasses be marketed as Karoo Lamb?
Why: The carcass specification is met: age class A, 22 kg is inside the 12–25 kg window, fat 3 is inside 1–6, conformation 4 is inside 3–5. What fails is origin. GN 3992 of 27 October 2023 requires born, raised and slaughtered inside the defined biomes, which is exactly the clause that stops lambs being trucked in to finish. A specification that can fail an otherwise perfect carcass is doing real work; a marketing adjective cannot.
Sources for this lesson
- Cape Wools SA — market report — 2025/26 SA Merino indicator: low 17 504, average 22 542, high 27 066 c/kg clean
- Agribook — Wool (sheep) — Micron classes, >90% of the clip exported, producer numbers, and SA's actual world position
- NWGA — advisory services — Class standards, the Springbok Head mark, and contamination faults cut from ~1 600 to ~300
- Farmer's Weekly — Merino sheep: sacrificing size for superior wool — Indicative SA fleece weight of 4–5 kg greasy, micron average and the ~50–51% clean yield problem
- NWGA — RWS and SCWS: a view on South African wool's sustainability standards — South Africa does not mules, and what that does and does not buy at audit
- Textile Exchange — Responsible Wool Standard — RWS scope and the chain-of-custody requirement that sits behind any claim
- Cape Wools SA — Sustainable Cape Wool Standard — The four pillars of the SCWS
- Cape Wools SA — South African sustainability standards for a comfier woolly future — The successor Sustainable Wool South Africa standard, and Cape Wools' own careful wording on premiums
- Daily Maverick, 14 August 2025 — regenerative farming in the SA wool industry — 2024/25 exports of 44.3 million kg greasy worth R4.44 billion, >80% to China, and the disputed certified share
- Government Notice 3992, Government Gazette 49556, 27 October 2023 — registration of Karoo Lamb / Karoo Lam as a Geographical Indication — The gazetted minimum product specification: biome boundary, free range, age class A, carcass 12–25 kg, fat 1–6, conformation 3–5, F1 damage only