Samsung SDI Q2 2026 — Profitable Again, but the Battery-Segment Bridge Stays Blank
Samsung SDI's battery segment posted KRW 159.3B operating profit in Q2, ending seven straight quarters of losses. The trailing sequence — KRW -630B, -339B, -177B, +159B — is moving in one direction with widening steps. The 45X decomposition still cannot be completed: Samsung books the credit as AMPC and discloses it only at consolidated level (KRW 107.7B), with no segment allocation, and an unquantified tariff refund also supported the quarter. Mechanical consolidated ex-AMPC profit is positive for the first time, though management's "slightly positive" description of the organic result is doing work a number should have done. Samsung is building a differentiated ESS position on a financial foundation public disclosure cannot independently assess.
Samsung SDI Q2 2026 — Profitable Again, but the Battery-Segment Bridge Stays Blank
Samsung SDI's battery segment posted KRW 159.3B operating profit in Q2, ending seven straight quarters of losses. The trailing sequence — KRW -630B, -339B, -177B, +159B — is moving in one direction with widening steps. The 45X decomposition still cannot be completed: Samsung books the credit as AMPC and discloses it only at consolidated level (KRW 107.7B), with no segment allocation, and an unquantified tariff refund also supported the quarter. Mechanical consolidated ex-AMPC profit is positive for the first time, though management's "slightly positive" description of the organic result is doing work a number should have done. Samsung is building a differentiated ESS position on a financial foundation public disclosure cannot independently assess.
Utilization Comparability Reference
LG Energy Solution reported H1 2026 utilization of 52.8%. Samsung SDI reported 73%. SK On filed 36.4%. These cannot be ranked; they measure different quantities against different denominators.
LG's rate is value-based: production value divided by capacity value across all facilities and chemistries. Samsung's is a unit count at two small-cell plants, Cheonan and Tianjin, excluding EV, ESS, and all US operations entirely. SK On's is time-based: load hours divided by operating hours, unrelated to GWh throughput. The 94.3 GWh nameplate capacity SK On separately discloses is not the denominator in its filed rate.
A standardized rate would still measure cost absorption pressure on the manufacturer rather than procurable supply. Idle capacity may sit in an unconverted chemistry, an unqualified line, a FEOC-noncompliant facility, or behind existing customer commitments. Track each company's rate over time as a financial stress signal. None of these figures tells you what is available to buy.
