Conflict Minerals Report

For the Year Ended December 31, 2015

BUTLER NATIONAL CORPORATION CONFLICT MINERALS REPORT

The aerospace part of Butler National’s business is based upon design engineering and installation innovations to enhance and support products related to airplanes and ground support equipment. Certain Butler products contain materials and components which use small amounts of conflict minerals. Due to the depth of the supply chain, Butler is far removed from the sources of ore from which these materials are produced and the smelters or refiners that process those ores. The amount of information available globally on the traceability and sourcing of these ores is limited and Butler must rely on its suppliers to provide us with information on the origin of any conflict minerals contained in components and materials supplied to us.

FY2016 Q3 – Financial Results and Conference Call

Olathe, Kansas – Butler National Corporation ($BUKS), a leader in the global market for aircraft structural modification, maintenance, repair and overhaul (MRO) and a recognized provider of management services in diverse business groups, announces its financial results for the third quarter and nine months ended January 31, 2016.  In conjunction with the release, the Company has scheduled a conference call Monday, March 21, 2016 at 9:00 AM Central Daylight Time.

Avcon Industries Learjet 20 Series Noise Solution Announced

Newton, Kansas – Butler National Corporation ($BUKS), a leading manufacturer and provider of support systems for commercial and military aircraft and a recognized provider of management services in diverse business groups including the gaming industry, announces the Avcon Industries, Inc. expands its Noise Suppression (hush kit) solution for Learjet XR Model 20 Series airplanes.  Avcon STC No. ST01733WI now includes all model 24 and 25 series with all wing types, including the straight wing, Mark II, XR and Century III.  The Avcon installation does not restrict the FAA certified Maximum Operating Altitude of 41,000, 45,000 or 51,000 feet.

FY2016 Q2 – Financial Results and Conference Call

Olathe, Kansas – Butler National Corporation ($BUKS), a leader in the growing global market for structural modification, maintenance, repair and overhaul (MRO) and a recognized provider of management services in diverse business groups, announces its financial results for the second quarter and six months fiscal 2016 for the period ended October 31, 2015.  In conjunction with the release, the Company has scheduled a conference call Friday, December 18, 2015 at 9:00 AM Central Standard Time.

ADS-B Compliance STC Learjet 60 Announced

Olathe, Kansas – Butler National Corporation ($BUKS), a leading manufacturer and provider of support systems for commercial and military aircraft and a recognized provider of management services in diverse business groups including the gaming industry, announces that its subsidiary, Butler Avionics, Inc., has received a Federal Aviation Administration (“FAA”) Supplemental Type Certificate (“STC”) approval of the installation of its ADS-B(Out) avionics solution into the Learjet Model 60.

FY2016 Q1 – Financial Results and Conference Call

Olathe, Kansas – Butler National Corporation ($BUKS), a leading manufacturer and provider of support systems for commercial and military aircraft and a recognized provider of management services in diverse business groups including the gaming industry, announces its financial results for the first quarter fiscal 2016 ended July 31, 2015.  In conjunction with the release, the Company has scheduled a conference call Wednesday, September 16, 2014 at 9:00 AM Central Daylight Time.

BNSC Exercises Purchase Option at the Boot Hill Casino & Resort

Olathe, Kansas – Butler National Corporation ($BUKS), a leading manufacturer and provider of support systems for commercial and military aircraft and a recognized provider of management services in diverse business groups including the gaming industry, announces that its subsidiary, Butler National Service Corporation (“BNSC”), delivered notice of the exercise of its option to purchase the building and related land in Dodge City, Kansas at the Boot Hill Casino & Resort.

FAA Approves AHC-3000A Retrofit STC

Olathe, Kansas – Butler National Corporation ($BUKS), a leader in the growing global market for aircraft structural modification, maintenance, repair and overhaul (MRO) and a recognized provider of management services in diverse business groups, announces it’s subsidiary, Avcon Industries, Inc, received Federal Aviation Administration (“FAA”) approval of the installation of the Rockwell Collins AHC-3000A Attitude Heading Reference System into the Learjet Model 60.  The STC retrofit package will be offered through Butler National’s subsidiary Butler Avionics, Inc.

FY2015 Q4 – Financial Results and Conference Call

Olathe, Kansas – Butler National Corporation ($BUKS), a leader in the growing global market for aircraft structural modification, maintenance, repair and overhaul (MRO) and a recognized provider of management services in diverse business groups, announces its financial results for the fourth quarter fiscal 2015 and year ended April 30, 2015. In conjunction with the release, the Company has scheduled a conference call Thursday, July 30, 2015 at 9:00 AM Central Daylight Time.

FY2015 Q3 – Financial Results and Conference Call

Olathe, Kansas – Butler National Corporation ($BUKS), a leader in the global market for aircraft structural modification, maintenance, repair and overhaul (MRO) and a recognized provider of management services in diverse business groups, announces its financial results for the third quarter and nine months ended January 31, 2015.  In conjunction with the release, the Company has scheduled a conference call Thursday, March 19, 2015 at 10:00 AM Central Daylight Time.

$5 Million Order From Orbital ATK, Inc. Announced

Olathe, Kansas – Butler National Corporation ($BUKS), a leading manufacturer and provider of support systems for commercial and military aircraft and a recognized provider of management services in diverse business groups including the gaming industry, announces its Tempe Arizona Division was awarded a contract for approximately $5 million from Orbital ATK, Inc., Mesa, AZ. (NYSE: OA).

Agreement Reached with Bally Gaming

Olathe, Kansas – Butler National Corporation ($BUKS) has reached an agreement with Bally Gaming, Inc. regarding Bally’s outstanding judgment.

New Learjet Component Solutions Available

Olathe, Kansas – Butler National Corporation ($BUKS), a leading manufacturer and provider of support systems for commercial and military aircraft and a recognized provider of management services in diverse business groups including the gaming industry, announces the availability of two new component solutions for sale for Learjets.

FY2015 Q2 – Financial Results and Conference Call

Olathe, Kansas – Butler National Corporation ($BUKS), a leader in the growing global market for structural modification, maintenance, repair and overhaul (MRO) and a recognized provider of management services in diverse business groups, announces its financial results for the second quarter and six months fiscal 2015 for the period ended October 31, 2014. In conjunction with the release, the Company has scheduled a conference call Tuesday, December 16, 2014 at 9:00 AM Central Standard Time.

FY2015 Q1 – Financial Results and Conference Call

Olathe, Kansas – Butler National Corporation ($BUKS), a leading manufacturer and provider of support systems for commercial and military aircraft and a recognized provider of management services in diverse business groups including the gaming industry, announces its financial results for the first quarter fiscal 2015 ended July 31, 2014. In conjunction with the release, the Company has scheduled a conference call Wednesday, September 17, 2014 at 9:00 AM Central Daylight Time.