the internet connection experience of the future.

Thursday, May 9, 2019, at 5:00 p.m. E.T. / 2:00 p.m. P.T.

Conference Call:To access the conference call, please dial 1- (U.S. toll-free) or 1- (international) and entering the access code 1991034. The audio webcast will be simultaneously available on the Investor Relations section of DZSs website atinvestor-relations/events/.

An audio replay will be offered for a week, by dialing 1- (U.S. toll-free) or 1- (international) and entering the access code 1991034.  An audio webcast recording will also be available online atinvestor-relations/events/for approximately one week following the original call.

Monday, March 18, 2019 (11 meetings only)

Tuesday, May 14, 2019 (11 meetings only)

Wednesday, May 29, 2019 (11 meetings only)

Thursday, May 30, 2019 (presentation and 11 meetings)

The Lotte New York Palace Hotel in New York, NY

DZS to Report First Quarter 2019 Financial Results on May 9th

DASAN Zhone Solutions Updates Guidance for Q119 and Full Year 2019 and Discloses Pro Forma Combined Financial Results for 2018, Inclusive of KEYMILE

DASAN Zhone Solutions Sets Spring 2019 Financial Conference Schedule

11,000 Schools in South Korea/

DZS Selected as Supplier of FTTP and Campus Solutions for

DASAN Zhone Solutions Reports Fourth Quarter and Fiscal Year 2018 Financial Results; Introduces Revenue Guidance for Full Year 2019

DZS to present the state and future of NG-PON2 technology at BASe

DZS-KEYMILE showcases its freedom of choice advantage at FTTH Conference 2019

Gigabit-speed passive optical LAN on the menu for food maker Marzetti Company

At DZS we are committed to satisfying our investors by meeting or exceeding expectations. We are continuously striving to accomplish the highest standards of investor satisfaction by constantly improving the capabilities, quality, and delivery of our information.

DZS to Report First Quarter 2019 Financial Results on May 9th

DASAN Zhone Solutions Updates Guidance for Q119 and Full Year 2019 and Discloses Pro Forma Combined Financial Results for 2018, Inclusive of KEYMILE

DASAN Zhone Solutions Reports Fourth Quarter and Fiscal Year 2018 Financial Results; Introduces Revenue Guidance for Full Year 2019

DZS to Announce Fourth Quarter and Full Year 2018 Financial Results on February 28th

DASAN Zhone Solutions Reports Strong Third Quarter 2018 Financial Results; Raises Revenue Guidance and Introduces Additional Guidance for Full Year 2018

Shareholder Correspondence should be mailed to:

ComputershareP.O. Box 505000SaveLouisville, KY 40233

Computershare462 South 4th Street, Suite 1600Louisville, KY 40202

Some of the information on this website may contain projections or other forward-looking statements regarding future events or the future financial performance of the company. These statements are based on current expectations, estimates, forecasts, and projections about the industries in which we operate and the beliefs and assumptions of our management. We use words such as anticipate, believe, continue, could, estimate, expect, goal, intend, may, plan, project, seek, should, target, will, would, variations of such words, and similar expressions to identify forward-looking statements. In addition, statements that refer to projections of earnings, revenue, margins, costs or other financial items; anticipated trends in our business or key markets; improvements in the capital spending environment; future economic conditions and performance; anticipated performance of products or services or industry rankings; plans, objectives and strategies for future operations; future economic conditions or performance; and other characterizations of future events or circumstances, are forward-looking statements. We wish to caution you that these forward-looking statements are only predictions and that actual results may differ materially and adversely from those expressed in any forward-looking statements.

Factors that might cause such a difference include, but are not limited to, the economic slowdown in the telecommunications industry that has restricted the ability of our customers to purchase our products, commercial acceptance of our SLMS products, intense competition in the communications equipment market from large equipment companies as well as private companies with products that address the same networks needs as our products, higher than anticipated expenses that we may incur, and other risks factors discussed in our Forms 10-K, 10-Q and 8-K, which are on file with the SEC at and are also available on this website at Zhone assumes no obligation and does not intend to update any forward-looking statements.

Photograph of the NASDAQ Sign Copyright 2006, The Nasdaq Stock Market, Inc. Reprinted with permission.

Contact:Christian Schwab Senior Research Analyst

Contact:Tyler Burmeister Research Analyst