On March 6, 2019, Cabot Microelectronics Corporation (the Company) held its annual meeting of stockholders (Annual Meeting), at which the following proposals were approved by the Companys stockholders:

Proposal 1 Election of two directors, each for a term of three years:

All of the Boards nominees for director were elected by the stockholders to serve for a term of three years, by the votes set forth in the table below:

Proposal 2 Advisory (non-binding) vote on the compensation of named executive officers:

The stockholders approved, on an advisory (non-binding) basis, the compensation of named executive officers, by the votes set forth in the table below:

Proposal 3 Ratification of the selection of PricewaterhouseCoopers LLP as the Companys independent auditors for fiscal year 2019:

The selection of PricewaterhouseCoopers LLP as the Companys independent auditors for fiscal year 2019 was ratified by the stockholders, by the votes set forth in the table below:

About Cabot Microelectronics Corporation (NASDAQ:CCMP)

Cabot Microelectronics Corporation supplies polishing slurries and pads used in the manufacture of integrated circuit (IC) devices within the semiconductor industry, in a process called chemical mechanical planarization (CMP). The Company is engaged in the development, manufacture and sale of CMP consumables. The Company develops, produces and sells CMP slurries for polishing conducting and insulating materials used in IC devices, and also for polishing the disk substrates and magnetic heads used in hard disk drives. It also develops, manufactures and sells CMP polishing pads, which are used in conjunction with slurries in the CMP process. The Company also pursues other surface modification applications through its engineered surface finishes (ESF) business. The Company offers CMP polishing pads, under the Epic and NexPlanar brand names, for a range of applications and technology nodes.