---
title: "Dowstone: The testing progress of single-walled carbon nanotubes with key clients is going smoothly"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/257011315.md"
description: "On September 11th, Dowstone stated in an institutional research meeting that single-walled carbon nanotubes have been supplied in bulk to multiple battery cell customers, with testing progress going smoothly. The company has successfully solved the technical challenges of high-quality and low-cost scalable preparation, planning to achieve an annual capacity of 50 tons in the first quarter of 2026, and reach 120 tons per year within the following year. It is expected that production costs will further decrease, enhancing profit margins and market competitiveness"
datetime: "2025-09-12T01:24:56.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/257011315.md)
  - [en](https://longbridge.com/en/news/257011315.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/257011315.md)
---

# Dowstone: The testing progress of single-walled carbon nanotubes with key clients is going smoothly

On September 11th, Dowstone stated during an institutional research meeting that the company has begun bulk supply of single-walled carbon nanotubes to multiple battery cell customers and has sent samples to several well-known companies in the lithium battery field and overseas customers for testing, with positive progress reported from key customer tests. The company has successfully overcome the technical challenge of "balancing high quality and low cost" in the large-scale preparation of single-walled carbon nanotubes and is actively promoting large-scale production work. The company is confident in achieving an annual production capacity of 50 tons by the first quarter of 2026, with plans to complete the construction of 120 tons/year capacity within the following year. As production capacity is released, the production costs of the company's single-walled carbon nanotubes will further decrease, thereby increasing profit margins and market competitiveness

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