May 12, 2025

Dear Valued Partner,

The recent announcement surrounding tariffs has created an atmosphere of uncertainty for many businesses and we recognize the challenges this may bring to you and your organization. These are truly unprecedented times, and Ycellbio Medical wants you to know that you are not navigating them alone.

While we continue to assess the potential impact on our business, we have made a clear decision we will hold our current pricing until 7/1/2025. We know how critical price stability is for planning and operations and we hope this provides you with immediate peace of mind.

Thanks to our strategic efforts to diversify our supply chain, we are fortunate to have a stable and healthy product inventory. This strength enables us to continue providing the quality products and reliable service you depend on.

Throughout this evolving situation, we are committed to maintaining open and transparent communication. We will continue to monitor developments closely and will provide further updates later this month. As we evaluate the potential impacts and plan for the future, you can count on us to keep you informed every step of the way.

Most importantly, please rest assured: our commitment to delivering quality products and superior customer service remains unwavering. Your success is our priority, and we are here to support you through every challenge and opportunity that lies ahead.

Thank you for your continued partnership and trust in Ycellbio Medical.

Sincerely,

William Ruff | CEO

Ycellbio Medical, USA