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Hanwha Ocean (formerly Daewoo Shipbuilding & Marine Engineering, acquired by the Hanwha Group in 2023) is a South Korean shipbuilder headquartered at the Geoje/Okpo yard in South Gyeongsang Province — one of the world's largest shipyards.
Named counterparties identified by open-source research and written only where a primary source states the relationship — never inferred from sector or co-mention. 1 supplier. This is a partial view: it covers the relationships we could evidence, not the company's full supply base.
DAPA selected Hanwha Defense as prime for KSS-III Batch II AIP submarines in 2019; Samsung SDI supplies the lithium-ion battery packs for the class, first vessel (ROKS Jang Yeong-sil) launched Oct 2025.
Scope. Absence of a counterparty here is not evidence that none exists — most commercial sourcing is confidential and never becomes public. Rows without a share figure mean no share was disclosed, not that the relationship is small.
Every exposure is read as a buyer dependency; the top 3 are its binding chokepoints.
As a buyer, policy pressure across its consumed materials is flat.
Descriptive trend in official policy actions on this company’s materials — a policy-pressure trend, not a price or trading signal. No forward probability is implied. Direction is measured on actions we have discovered, and discovery lags events: where the recent window is too thin to support a calm reading, the row says coverage-limited instead of easing.
No actions in the register have named or swept this company in the last 24 months.