Company: OTSA
Filing Date: 2025-07-16
Form Type: F-1/A
Source: 0001213900-25-064434
Chunk: 199

Company: OTSAW Ltd
Filing Date: 2025-07-16
Form: F-1/A
Chunk 199
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 for the entire lease duration. Those who purchase our products benefit from a one -yearwarranty covering software and hardware defects in material and workmanship, with the option to extend coverage for an additional year at the time of purchase. After the warranty period, customers can opt for a customized service contract tailored to their specific needs. As a general estimate, our comprehensive maintenance packages are priced at 10% of the robot cost or total project contract sum. For example, for a hospital project valued at US$5M, the comprehensive maintenance fee would be approximately US$500,000 per year. This ensures ongoing system reliability, optimal performance, and long -termsupport for the deployed robots. Our operations support is provided globally to our customers either by (i) Otsaw personnel at our Singapore headquarters and European regional center, or (ii) regional distributors in regions or countries where we do not have a regional center or operational presence. 118

In relation to service and maintenance contracts, we have several large customers with whom we generated substantial revenue each year, and the composition of our largest customers has changed from year to year. For the six months ended October31, 2024 and 2023, we derived approximately 85.3% and 82.8% of our total revenues from service and maintenance, respectively. In relation to our service and maintenance contracts, our revenue is concentrated among a small number of key customers. Although the composition of our largest customers has varied from year to year, a small group of customers continues to represent a significant portion of our revenue. For the fiscal year ended April30, 2023, our top three customers — Engie Services Singapore Pte Ltd, Sengkang General Hospital Pte Ltd, and Universitätsmedizin Greifswald Kdör — accounted for approximately 13.75%, 10.51%, and 10.13% of our sales, respectively. For the six months ended October31, 2023, these customers represented 13.26%, 10.16% and 14.51% of our sales, respectively. For the fiscal year ended April30, 2024, our top three customers — Engie Services Singapore Pte Ltd, Ng Teng Fong General Hospital, and Sengkang General Hospital Pte Ltd — contributed approximately 10.68%, 12.10%, and 10.79% of our sales, respectively. For the six months ended October31, 2024, these customers accounted for