Take the information from other colleagues
Sample 2
Dear Marcus,
How are you doing? This is Water from ABC Company, Ms. Grace’s colleague. She already left the company some time ago. It’s been a long time no contact with you and your company. We are glad to contact you again about external battery pack for Mobile Phone and Notebook.
I would like to update you some latest model and new offers for your reference. We hope we can enlarge our business scale. Please find the details as attached.
Looking forward to hearing from you soon.
Best regards,
Water