To Our Valued Clients and Partners at techTongBo

Dear Valued Clients and Partners,

As we welcome the new year, we would like to extend our sincere thanks to each of you.

Throughout the past year, your continued trust and partnership have been the cornerstone of our progress. It is thanks to your support and collaboration that we have been able to maintain steady growth and deliver consistent value to your businesses, even in a challenging market environment. We are truly honored to serve as your reliable partner.

In 2025, we delivered solid results:

• Overall company revenue grew by 28% year-over-year, while overseas business increased by 32% year-over-year.

• Our global enterprise client base grew by 36%, and we now serve customers in over 100 countries and regions.

• Our client distribution remains concentrated in our core markets: North America accounts for approximately 27%, Europe (including the UK, Germany, France, the Nordics, Benelux, and others) for 37%, and other APAC and emerging markets for 36%.

A precious souvenir from techTongBo and our partners

Looking at regional performance, each market has shown distinct preferences that clearly reflect local customer needs:

In North America, our compatible accessories and consumables for Dyson, iRobot, Shark, Miele, and other leading robot vacuum and vacuum cleaner brands have remained the most popular. With highly competitive pricing and proven quality that has stood the test of the market, these products have helped our clients capture significant market share.

In Europe, machines from Dyson, Roborock, Dreame, Xiaomi, Karcher, Philips, Hoover, and Vorwerk continue to perform strongly both online and in physical retail channels. techTongBo has become a preferred supplier for many European retailers and distributors, offering a comprehensive range of high-quality third-party accessories for these brands. In addition, sales of our air purifier and humidifier filters—compatible with Winix, Honeywell, Levoit, Philips, Xiaomi, Dyson, and others—gained notable traction in 2025. During the second half of the year, several of our multi-brand floor cleaning solutions also became top sellers in the Nordic region. Product Catalog

techTongBo's international business keeps growing steadily.

Beyond these established markets, 2025 marked meaningful breakthroughs in geographic reach. Client numbers in South America and Southeast Asia experienced explosive growth. This expansion has been driven in large part by the continued rise of global online retail, as many small and medium-sized businesses in these regions have turned to trusted international suppliers. We are proud and grateful to have become a key partner in helping these customers launch and scale their businesses.

Looking ahead to 2026, we are confident and more committed than ever to our 3F Commitment—delivering greater value to you.

We recognize the growing importance of artificial intelligence, sustainability, operational resilience, and data-driven decision-making. With this in mind, we will prioritize the following in the coming year:

• Accelerate new product development by closely tracking major brand model launches, enabling you to capture market opportunities faster.

• Continue significant investment in product reliability, safety, and compliance (including REACH, VOC, ISO standards, and other relevant regulations).

• Strengthen our customer success and support teams to help you achieve faster time-to-value and higher satisfaction.

• Remain guided by your real-world feedback and evolving market needs to continually refine our products and services.

techTongBo remains committed to its "3F Commitment"

To our long-standing partners who have been with us for many years: thank you for your loyalty and candid input. Your trust is our most valuable asset, and we will continue working hard to earn it every day.

In 2026, our single, clear goal is straightforward: to be the dependable, high-value partner that helps drive your business success.

Thank you once again for choosing techTongBo. We look forward to deepening our collaboration and achieving even greater results together in the year ahead.

Best regards,

techTongBo

February 2026

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techTongBo (also named: Nanjing TongBo / NJTB) is a Chinese company specializing in the manufacture and sales of vacuum cleaner accessories. We offer replacement accessories for the global market that are compatible with mainstream vacuum cleaner brands and have stronger price advantages.