The Chinese subsidiary of Boston-based speciality chemicals and materials firm Cabot has agreed to acquire Shenzhen Sanshun Nano New Materials (SUSN) for about $115 million. The deal expected to close in Q2 of fiscal 2020.

SUSN is claimed to be the world’s second largest producer of carbon nanotubes (CNTs) and commissioned a new plant in China in November 2018 with enough capacity to support growth over the next several years. It will henceforth be part of Cabot’s Performance Chemicals segment.