Origin
The source of hazelnut shell: seven Black Sea provinces
The hazelnut shell that reaches export markets doesn't come from a single point — it comes from seven provinces stretched along the Black Sea coast. Each province plays a different role in the supply picture; below is that map, based on TÜİK 2024 figures.
Why a region, not a single province
Hazelnut shell is a byproduct of hazelnut cracking plants, so its origin is shaped as much by where the cracking plants sit as by where hazelnut production is densest. The Black Sea coast satisfies both conditions at once, which is why it forms the backbone of our sourcing map.
For an export buyer working from outside the region, this means continuity of supply through the season without depending on a single province. The seven provinces below are ordered by their role in sourcing, not by production volume or geography.
Source Provinces
Seven provinces, seven different roles
Ordu
TÜİK 2024, approx. 202,000 tonnes
Ordu holds the largest share of Turkey's hazelnut shell production (TÜİK 2024, approx. 202,000 tonnes). For an export buyer, this scale means uninterrupted supply through the season; container-based shipments can be planned through the cracking plants we work with in the region.
Samsun
TÜİK 2024, approx. 114,000 tonnes
Samsun's production is spread across its districts; Çarşamba alone, with roughly 40,500 tonnes, ranks first among Turkey's districts in hazelnut production (TÜİK 2024). The province total of roughly 114,000 tonnes makes it the second-largest source.
Düzce
TÜİK 2024, approx. 95,000 tonnes
Düzce, at the western end of the Black Sea, is a significant part of the sourcing map with roughly 95,000 tonnes of production (TÜİK 2024); its proximity to Marmara also plays a role in moving shell further west.
Giresun
TÜİK 2024, approx. 94,000 tonnes
Giresun's production stands at roughly 94,000 tonnes (TÜİK 2024); cracking plants along its coastline generate a steady shell supply in step with the hazelnut cracking season.
Sakarya
TÜİK 2024, approx. 82,000 tonnes
Sakarya, with roughly 82,000 tonnes of production (TÜİK 2024), is the only major source province in Marmara; its short distance to ports around Istanbul makes it easier for shell to reach the export point.
Zonguldak
TÜİK 2024, approx. 40,000 tonnes
Zonguldak's production is roughly 40,000 tonnes (TÜİK 2024); along the western Black Sea coast it forms a smaller but steady source.
Trabzon
TÜİK 2024, approx. 38,000 tonnes
Trabzon's production, roughly 38,000 tonnes (TÜİK 2024), is the smallest of the seven provinces — but its strength lies in location, not tonnage. It sits at the centre of the port and land-border corridor that opens toward the Caucasus, Georgia and Russia, which is why we cover it in depth on its own page.
Explore Trabzon in depth →Let's talk
Ask us about the source region
Which province, which harvest window, what volume — write to us and let's work out the origin and shipping plan together.