Komori
Sumiseki Holdings (1514) · FactName changed to Diamond Business; domestic customer sales and overseas sales remain sluggishLatest Earnings (2026-07-31): "Other"

Sales of Abrasive Materials for IoT and Automotive Components

First written in FY2017-Q1. 16 of 38 entries say "Worsened", first in FY2018-Q2. Latest entry: 2026-07-31.

38entries
11years
3from disclosures
Share on X
How it moved
ProgressHeldSoftenedWorseWorsenedFY2019 – FY2021-Q3WorsenedFY2023-Q3 – FY2024OtherFY2025-H1 – FY2026-H12016: 220162017: 420172018: 420182019: 420192020: 420202021: 420212022: 420222023: 320232024: 320242025: 220252026: 42026
Same theme, other companies
Sales Trends for Abrasives for IoT-Related Products and Automotive ComponentsA theme 1 companies write about · 1 as a headwind · 0 as a tailwind

No other company in this theme has enough history to compare yet.

Full recordFilings, disclosures and news, newest first
  1. 2026-07-31OtherEarnings

    「During the first quarter of the current consolidated cumulative period, sales volume progressed steadily, with net sales increasing 6.1% year on year to ¥76 million and operating profit increasing 45.6% to ¥23 million. In addition, partly due to strong performance at equity-method affiliate 株式会社トラストウェル, segment profit increased 136.4% to ¥37 million, resulting in higher sales and profit.」

    For the Diamond Business, steady sales volume and strong performance at 株式会社トラストウェル were identified as factors behind higher sales and profit.
  2. FY2026Name changed to Diamond Business; domestic customer sales and overseas sales remain sluggishAnnual report

    「In the Diamond business, production adjustments by major domestic customers for polycrystalline diamonds and sluggish overseas sales affected results. Revenue decreased 3.7% year on year to ¥267 million. Operating profit decreased ¥22 million to ¥48 million, down 31.7%, partly due to preparation costs for expanding manufacturing equipment, resulting in lower revenue and profit.」

    The New Materials business was renamed the Diamond business. Production adjustments by major domestic customers for polycrystalline diamonds, sluggish overseas sales and preparation costs for expanding equipment resulted in lower revenue and profit.
  3. FY2026-H1Sluggish overseas sales alongside the equity-method effectAnnual report

    「During the interim consolidated period, sluggish overseas sales of polycrystalline diamonds and other factors resulted in revenue decreasing 3.7% year on year to ¥127 million. Meanwhile, Trustwell Co., Ltd. became an equity-method affiliate during the interim consolidated period, among other factors, lifting segment profit 8.5% to ¥38 million.」

    Sluggish overseas sales of polycrystalline diamonds resulted in lower revenue, while the addition of Trustwell Co., Ltd. as an equity-method affiliate and other factors increased segment profit.
  4. FY2025Solid demand for compound semiconductors alongside weakness in automotive, smartphone and HDD marketsAnnual report

    「In the New Materials business, sales of abrasives for compound semiconductors remained solid during the fiscal year, but sales for automotive-related applications, smartphones and HDDs declined. Revenue was nearly flat at ¥278 million, up 0.9% year on year, while segment profit increased 56.7% to ¥700,000, resulting in higher revenue and profit.」

    Sales for compound semiconductors remained solid, while sales for automotive-related applications, smartphones and HDDs declined.
  5. FY2025-H1Strength in polycrystalline and single-crystal diamonds alongside weakness in smartphones and HDDsAnnual report

    「During the interim consolidated period, sales of polycrystalline and single-crystal diamonds were solid, but weak sales of abrasives for smartphones and HDDs weighed on results. Revenue decreased 2.2% year on year to ¥132 million. Meanwhile, strong sales of diamond products lifted segment profit 23.1% to ¥35 million, resulting in lower revenue but higher profit.」

    While weak sales of abrasives for smartphones and HDDs continued, strong sales of diamond products, including polycrystalline and single-crystal diamonds, increased segment profit despite lower revenue.
  6. FY2024WorsenedAnnual report

    「In the New Materials business, sales of abrasives for compound semiconductors and automotive parts remained solid during the fiscal year, but sales of abrasives for smartphones and HDDs fell sharply. Revenue decreased 10.8% year on year to ¥275 million, and segment profit decreased 41.0% to ¥44 million, resulting in lower revenue and profit.」

    While sales for compound semiconductors and automotive parts remained solid, the sharp decline in smartphone and HDD sales became evident over the full year, resulting in lower revenue and profit.
  7. FY2024-Q3WorsenedAnnual report

    「During the cumulative third quarter, some deliveries of abrasives for automotive parts were pushed back from the original plan to the fourth quarter. In addition, weak demand in the smartphone and HDD markets and other factors led to revenue decreasing 14.0% year on year to ¥203 million and segment profit decreasing 47.5% to ¥32 million, resulting in lower revenue and profit.」

    In addition to automotive-parts deliveries being pushed back to the fourth quarter, weak demand in the smartphone and HDD markets resulted in lower revenue and profit.
  8. FY2024-Q2WorsenedAnnual report

    「During the cumulative second quarter, sales of abrasives for compound semiconductors and automotive parts remained at approximately the prior-year level, but weak demand in the smartphone and HDD markets led to revenue decreasing 19.3% year on year to ¥135 million and segment profit decreasing 39.1% to ¥29 million, resulting in lower revenue and profit.」

    While sales for compound semiconductors and automotive parts were at approximately the prior-year level, weak demand in the smartphone and HDD markets resulted in lower revenue and profit.
  9. FY2024-Q1WorsenedAnnual report

    「Sales of abrasives for compound semiconductors and automotive parts remained solid, but weak demand in the smartphone market continued. Revenue decreased 17.7% year on year to ¥73 million, and segment profit decreased 26.7% to ¥16 million, resulting in lower revenue and profit.」

    Sales for compound semiconductors and automotive parts remained solid, but continued weak demand in the smartphone market resulted in lower revenue and profit for the New Materials business year on year.
  10. FY2023-Q3WorsenedAnnual report

    「During the cumulative third quarter, the compound semiconductor market remained strong, but the Company was affected by a sharp slowdown in the smartphone market. Revenue decreased 7.6% year on year to ¥237 million, and segment profit decreased 0.9% to ¥60 million, resulting in lower revenue and profit.」

    The compound semiconductor market remained strong, but the sharp slowdown in the smartphone market resulted in lower revenue and profit for the New Materials business.
  11. FY2023-Q2Lower revenue but higher profit; continued strength in the compound semiconductor marketAnnual report

    「During the cumulative second quarter, sales were affected by inventory adjustments in the smartphone market, but the compound semiconductor market remained strong. As a result, revenue decreased 2.0% year on year to ¥167 million, while segment profit increased 22.9% to ¥47 million, resulting in lower revenue but higher profit.」

    While inventory adjustments continued in the smartphone market, strong conditions in the compound semiconductor market led to lower revenue but higher segment profit.
  12. FY2023-Q1AdvancedAnnual report

    「During the cumulative first quarter, sales were affected by inventory adjustments in the smartphone and automotive parts markets, but the compound semiconductor market remained strong. As a result, revenue increased 4.2% year on year to ¥89 million and segment profit increased 13.6% to ¥22 million, resulting in higher revenue and profit.」

    Despite the impact of inventory adjustments in the smartphone and automotive parts markets, the New Materials business reported higher revenue and profit on the strength of the compound semiconductor market.
  13. FY2022AdvancedAnnual report

    「Strong sales of abrasives for smartphones, compound semiconductors and automotive parts lifted net sales 29.3% year on year to ¥360 million and segment profit 206.3% to ¥90 million.」

    Sales for smartphones, compound semiconductors and automotive parts remained strong throughout the fiscal year, bringing net sales and segment profit above the previous year's levels.
  14. FY2022-Q3RestatedAnnual report

    「During the first nine months of the fiscal year, sales of abrasives for smartphones and compound semiconductors remained strong, while sales of other abrasives also remained firm. As a result, net sales rose 34.2% year on year to ¥256 million and segment profit increased 373.1% to ¥60 million, resulting in higher revenue and profit.」

    Strong sales of abrasives for smartphones and compound semiconductors and firm sales of other abrasives continued, bringing net sales to ¥256 million and segment profit to ¥60 million.
  15. FY2022-Q2AdvancedAnnual report

    「During the first half of the fiscal year, sales of abrasives for the smartphone market were strong as the market recovered from COVID-19, while sales of abrasives for compound semiconductors and other abrasives also remained firm. As a result, net sales rose 43.0% year on year to ¥170 million and segment profit increased 701.9% to ¥38 million, resulting in higher revenue and profit.」

    In addition to strong sales for smartphones, sales for compound semiconductors and other applications remained firm, with net sales up 43.0% year on year and segment profit up 701.9%.
  16. FY2022-Q1AdvancedAnnual report

    「During the first quarter of the fiscal year, the smartphone and compound semiconductor markets remained firm as teleworking and working from home became more widespread. As a result, net sales rose 45.3% year on year to ¥85 million, and segment profit increased to ¥19 million from ¥1 million in the same quarter of the previous year, resulting in higher revenue and profit.」

    The smartphone and compound semiconductor markets remained firm against a backdrop of more widespread teleworking and working from home, with net sales up 45.3% year on year and segment profit increasing from ¥1 million to ¥19 million.
  17. FY2021Full-year revenue and profit growth; market recoveryAnnual report

    「In the New Materials Business, the automotive parts market, which had implemented production adjustments through the first half of the fiscal year due to the impact of COVID-19, recovered sharply from the third quarter onward. The compound semiconductor and smartphone markets also remained solid. As a result, net sales rose 1.6% from the previous fiscal year to ¥278 million, and segment profit increased 12.8% to ¥29 million.」

    The automotive parts market recovered sharply from the third quarter onward, while the compound semiconductor and smartphone markets also remained solid, resulting in higher full-year revenue and profit.
  18. FY2021-Q3WorsenedAnnual report

    「During the first nine months of the fiscal year, customers in the automotive and electronic components-related markets were forced to implement production adjustments due to the impact of COVID-19, resulting in lower sales volumes. As a result, net sales fell 7.2% year on year to ¥190 million, and segment profit declined 39.3% to ¥12 million.」

    Production adjustments and lower sales volumes at customers in the automotive and electronic components-related markets continued, leaving net sales and segment profit below the year-earlier levels.
  19. FY2021-Q2WorsenedAnnual report

    「During the first half of the fiscal year, customers in the automotive and electronic components-related markets were forced to implement production adjustments due to the impact of COVID-19, resulting in lower sales volumes.」

    Production adjustments by customers in the automotive and electronic components-related markets continued, resulting in lower sales volumes.
  20. FY2021-Q1WorsenedAnnual report

    「During the first nine months of the fiscal year, customers in the automotive and other markets implemented production adjustments due to the impact of COVID-19, resulting in a sharp decline in sales. As a result, net sales fell 11.1% year on year to ¥58 million. Segment profit also declined 74.1% to ¥1 million due to higher manufacturing costs.」

    Production adjustments by customers in the automotive and other markets sharply reduced sales, while higher manufacturing costs also contributed to declines in net sales and segment profit.
  21. FY2020WorsenedAnnual report

    「In the New Materials Business, sales in the smartphone-related market remained firm, but production adjustments continued in the automotive-related market and other factors resulted in net sales of ¥274 million, down 9.8% from the previous fiscal year.」

    Although smartphone-related sales remained firm, continued production adjustments in the automotive-related market resulted in full-year net sales declining 9.8% from the previous fiscal year.
  22. FY2020-Q3WorsenedAnnual report

    「During the first nine months of the fiscal year, production adjustments by customers in the automotive-related market continued, while the spot sales to the sapphire polishing market and other markets recorded during the first nine months of the previous fiscal year fell away. Net sales declined 14.0% year on year to ¥205 million, and segment profit fell 30.3% to ¥21 million.」

    Production adjustments by customers in the automotive-related market continued, while spot sales to the sapphire polishing market and other markets recorded in the year-earlier period fell away, resulting in declines in both net sales and segment profit.
  23. FY2020-Q2WorsenedAnnual report

    「During the first half of the fiscal year, sales in the automotive-related market declined, resulting in net sales of ¥139 million, down 9.9% year on year, and segment profit of ¥14 million, down 4.8%.」

    A decline in sales in the automotive-related market was newly identified, leaving net sales and segment profit in the New Materials Business below the year-earlier levels.
  24. FY2020-Q1WorsenedAnnual report

    「Temporary inventory adjustments by a major customer resulted in net sales of ¥66 million, down 14.9% year on year. As a result, segment profit was ¥4 million, down 14.2%.」

    Temporary inventory adjustments by a major customer in the New Materials Business left both net sales and segment profit below the year-earlier levels.
  25. FY2019WorsenedAnnual report

    「In the New Materials Business, sales increased in the automotive and smartphone-related markets but declined in the compound semiconductor-related market. As a result, net sales were ¥304 million, down 1.6% from the previous fiscal year.」

    Although automotive- and smartphone-related sales increased, declines in the compound semiconductor-related market brought full-year net sales to ¥304 million, down 1.6% from the previous fiscal year.
  26. FY2019-Q3Higher revenue and lower profitAnnual report

    「Sales of abrasives for the automotive and smartphone-related markets increased, lifting net sales 9.6% year on year to ¥239 million. As a result, segment profit was ¥30 million, down 6.7% year on year.」

    Sales of abrasives for the automotive and smartphone-related markets increased, while segment profit fell below the year-earlier level.
  27. FY2019-Q2RestatedAnnual report

    「Although sales in the automotive and smartphone-related markets remained solid, higher expenses to strengthen the sales organization resulted in net sales of ¥154 million, up 6.9% year on year, and segment profit of ¥15 million, down 46.2%.」

    Although sales in the automotive and smartphone-related markets continued to be described as solid, segment profit continued to decline due to higher expenses to strengthen the sales organization.
  28. FY2019-Q1WorsenedAnnual report

    「Although sales in the automotive and smartphone-related markets remained solid, sales in the compound semiconductor market declined and expenses increased to strengthen the sales organization. Net sales fell 5.8% year on year to ¥77 million, and segment profit declined 75.5% to ¥5 million.」

    Although automotive- and smartphone-related sales remained solid, lower sales in the compound semiconductor market and higher expenses to strengthen the sales organization resulted in lower revenue in the New Materials Business, while segment profit fell 75.5% year on year.
  29. FY2018WorsenedAnnual report

    「Although sales to the automotive sector remained solid, sales related to smartphones fell sharply due to lower smartphone production volumes in China, resulting in net sales of ¥309 million, down 12.9% from the previous fiscal year.」

    Automotive-related sales remained solid, but smartphone-related sales fell sharply due to lower smartphone production volumes in China, resulting in lower full-year revenue in the New Materials Business.
  30. FY2018-Q3RestatedAnnual report

    「As inventory adjustments by major customers persisted, net sales fell 18.0% year on year to ¥218 million and segment profit declined 49.0% to ¥32 million.」

    Inventory adjustments by major customers continued for an extended period, leaving net sales and segment profit in the New Materials Business below the year-earlier levels.
  31. FY2018-Q2WorsenedAnnual report

    「As inventory adjustments by major customers persisted, net sales fell 20.9% year on year to ¥144 million and segment profit declined 34.7% to ¥29 million.」

    Customer inventory adjustments progressed from being a factor behind the previous slowdown to a prolonged issue, and declines in net sales and segment profit in the New Materials Business have continued.
  32. FY2018-Q1Slowdown due to customer inventory adjustmentsAnnual report

    「A decline in sales of abrasives for IoT-related applications due to customer inventory adjustments resulted in net sales of ¥82 million, down 21.4% year on year, and segment profit of ¥20 million, down 25.4%.」

    Sales of abrasives for IoT-related applications declined due to customer inventory adjustments, leaving both net sales and segment profit below the year-earlier levels.
  33. FY2017RestatedAnnual report

    「In the New Materials Business, sales of products and merchandise remained broadly in line with the previous fiscal year, but the absence of contract blasting tests conducted on a spot basis in the previous fiscal year resulted in net sales of ¥354 million, down 2.6%.」

    Although sales of products and merchandise in the New Materials Business remained broadly in line with the previous fiscal year, revenue declined following the end of spot contract blasting tests.
  34. FY2017-Q3AdvancedAnnual report

    「Strong sales of abrasives for IoT-related applications and automotive components lifted net sales 2.4% year on year to ¥266 million and segment profit 45.1% to ¥63 million.」

    Strong sales of abrasives for IoT-related applications and automotive components continued, bringing cumulative net sales to ¥266 million and segment profit to ¥63 million.
  35. FY2017-Q2AdvancedAnnual report

    「Strong sales of abrasives for IoT-related applications and automotive components lifted net sales 11.0% year on year to ¥182 million and segment profit 87.8% to ¥44 million.」

    Strong sales of abrasives for IoT-related applications and automotive components continued, bringing cumulative net sales to ¥182 million and segment profit to ¥44 million.
  36. FY2017-Q1First statedAnnual report

    「Strong sales of abrasives for IoT-related applications and automotive components lifted net sales 24.0% year on year to ¥105 million and segment profit 160.6% to ¥27 million.」

    The New Materials Business reported strong sales of abrasives for IoT-related applications and automotive components.
Moved together

"Changes in coal prices and sales volume due to weaker demand in China" moved the same way as this thread, in the same document, in 12 of its 38 moves.

1276554★123456
  1. ★This thread
  2. 1Changes in coal prices and sales volume due to weaker demand in China12×
  3. 2Potential Dilution from Equity Compensation Stock Options7×
  4. 3Guarantee Liabilities Relating to Individual Housing Loans6×
  5. 4Pneumoconiosis Damages Lawsuit5×
  6. 5Market Price Volatility Risk on Investment Securities5×
  7. 6Overseas Investment Risks Related to Australia’s Whitehaven Coal and Peabody Energy4×

★ is this thread; numbers match the list above. The number on a line is how many documents both moved the same way in; lines between the other threads count the documents they moved together in too. Threads that move together often sit closer.

When this could move next
No upcoming earnings preview for Sumiseki Holdings yet. It last moved in the Earnings of 2026-07-31: "Other".
News
No news is linked to this thread yet. When an article touches it, it will appear here by date.
Sales of Abrasive Materials for IoT and Automotive Components | Sumiseki Holdings,Inc. (1514) | Komori