Exhibit 99.1 News Release ACCO BRANDS REPORTS FIRST QUARTER RESULTS • Reported net sales of $359 million, with gross margin expanding 120 basis points • On track to deliver over$20 million in cost savings from our multi-year cost savings program • Net operating cash flow improved $51 million, generated free cash flow of$26 million • Consolidated net leverage ratio of 3.5x at quarter-end • Loss per share of $(0.07); adjusted EPS of$0.03, in line with the Company's outlook LAKE ZURICH, ILLINOIS, May 2, 202 ...