CMC Materials, Inc. provided revenue guidance for the second quarter of 2021. The company currently expects revenue in the second quarter of fiscal 2021 to be up low single digits compared to revenue in the first quarter. Electronic Materials revenue is expected to be up low single digits and Performance Materials revenue is expected to be up high single digits for the quarter. The company is increasing full fiscal year 2021 adjusted EBITDA to be between $367 million and $387 million.