My net profit fell 9.17% for the full year and 15.55% in Q1 2026, but revenue grew 8.75% in H1 and 8.72% in Q1 2026 — so the pressure is on margin, not volume. Quarterly profit ran 46.5, then 52.7, then 40.6, then 32.8 million yuan; the full-year turn came from a weak Q4 (down roughly 38% year-over-year). Gross margin was roughly flat (+0.16 point), pointing the decline below the gross line to operating expenses from capacity build-out and rising research spend. Weighted ROE has stepped down over three years, from 18.15% to 11.45% to 9.64%. The watch-item is the cycle, not the balance sheet.

Sling enters the rotary-actuator layer from the precision bearing it already owns, and it climbs the layer inside-out - three products, deepest-first by maturity. My reducer-specific cross-roller and flexible bearings are in production. The harmonic reducer completed second-phase production by period-end. The integrated actuator module - combining reducer, frameless motor, servo driver, encoder, brake - is research-reserve complete but not yet in production.