Niterra Co., Ltd., the ceramics and spark-plug maker, is walking away from an 11-year-old US acquisition. The company said on August 10 that its wholly owned Wisconsin subsidiary, Wells Vehicle Electronics, L.P., has signed a deal to sell its automotive repair-parts business to a newly formed buyer, closing out a bet made in 2015.
Wells, whose roots date to 1903, makes switches, ignition coils and pressure sensors for both the vehicle-repair aftermarket and new-car assembly lines. Niterra bought all of Wells' shares in 2015, planning to use its global sales network to expand sales of Wells products and strengthen its automotive-parts business. That bet did not pay off: intensifying competition kept squeezing margins, and Niterra said it could no longer expect the returns or synergies it once projected.
The repair-parts business being sold generated $74mn of revenue in the fiscal year that ended in March 2026. Wells overall booked $98mn in revenue that year, alongside an $18mn operating loss and a $24mn net loss.
| Metric | Year to March 2024 | Year to March 2025 | Year to March 2026 |
|---|---|---|---|
| Net assets | -$31mn | $65mn | $42mn |
| Total assets | $189mn | $172mn | $136mn |
| Revenue | $141mn | $127mn | $98mn |
| Operating profit | -$32mn | $4mn | -$18mn |
| Net profit | -$49mn | -$3mn | -$24mn |
The buyer is Wells Vehicle Electronics AEM, LLC, a subsidiary Omega Acquisition Corp created on July 22, 2026, specifically to take on the business. Omega already sells car air-conditioning and related aftermarket parts for passenger cars, heavy trucks and specialty vehicles in the US. Niterra's board approved the move on July 31, and the transfer agreement was signed and executed on August 7, US local time. Price and payment terms are confidential under a non-disclosure agreement between the parties, and Niterra says it has no capital, personnel or trading ties with the buyer.
The exit will not be cheap upfront. Niterra expects to book about ¥15bn in operating expenses this fiscal year, covering the transfer loss and provisions tied to unwinding the rest of Wells' auto-parts business. Liquidating the US entity is also expected to trigger deductible losses for Japanese tax purposes, and Niterra projects that the resulting tax reduction will outweigh the exit costs, lifting net profit by roughly ¥3bn overall.
Niterra frames the sale as portfolio discipline under its Medium-Term Management Plan 2030, announced last November, which narrows the company's focus to mobility, semiconductors, and environment and energy businesses built around its ceramics core. Wells, despite its century-long history, did not fit that mold once its aftermarket business stalled.
Niterra has not yet revised its earnings forecast for the fiscal year ending March 2027. It says it will disclose any changes, including from this deal or other factors, promptly if they arise.