Past Events
Gabelli Funds 10th Annual Waste & Sustainability Symposium
April 4, 2024 • 2:45pm EDT
Fourth Quarter 2023 Conference Call
March 27, 2024 • 4:30pm EDT
Chardan Battery Technology Virtual Conference
December 18, 2023
Bank of America Battery Materials Tech Day
December 12, 2023
The Benchmark Company Discovery Conference
December 7, 2023
Janney Montgomery Scott Clean Energy Investment Symposium
December 6, 2023
Third Quarter 2023 Conference Call
November 8, 2023 • 4:30pm EDT
H.C. Wainwright 25th Annual Global Investment Conference
September 11, 2023 • 5:00pm EDT
Second Quarter 2023 Conference Call
August 9, 2023 • 4:30pm EDT
2023 Annual Meeting of Stockholders
June 15, 2023 • 9:00am PDT
The MicroCap Rodeo
May 17, 2023 • 2:00pm EDT
Credit Suisse Renewables & Utilities Conference
May 16, 2023
Oppenheimer Emerging Growth Conference
May 11, 2023
First Quarter 2023 Conference Call
May 4, 2023 • 4:30pm EDT
Maxim Group Electric Vehicle & Auto Tech Conference
March 30, 2023 • 3:00pm EDT
Sidoti Small-Cap Conference
March 23, 2023 • 3:15pm EDT
2023 Annual Meeting of Stockholders
March 18, 2023 • 9:00am PDT
Fourth Quarter 2022 Conference Call
March 9, 2023 • 4:30pm EDT
Credit Suisse Annual Summit
February 27, 2023 • 9:50am MDT
Credit Suisse Climate Tech Conference
December 6, 2022
The Benchmark Company Discovery Conference
December 1, 2022
Third Quarter 2022 Conference Call
November 3, 2022 • 4:30pm EDT
LD Micro Main Event XV
October 26, 2022 • 1:00pm PDT
Lake Street, Best Ideas Growth Conference
September 14, 2022
H.C. Wainwright Global Investment Conference
September 13 – September 14, 2022
Second Quarter 2022 Conference Call
July 21, 2022 • 4:30pm EDT
2022 Annual Meeting of Stockholders
June 7, 2022 • 11:00am EDT
First Quarter 2022 Conference Call
April 28, 2022 • 4:30pm EDT
Water Tower Research Fireside Chat
March 30, 2022 • 2:00pm EDT
UBS Energy Transition Call Series
March 22, 2022 • 11:00am EDT
Fourth Quarter 2021 Conference Call
February 24, 2022 • 4:30pm EDT
Credit Suisse Climate Technology Start-Up Forum
December 6 – December 7, 2021
Water Tower Research Fireside Chat
December 1, 2021 • 2:00pm EDT
Water Tower Research Fireside Chat
November 10, 2021 • 2:00pm EDT
Third Quarter 2021 Conference Call
November 4, 2021 • 4:30pm EDT
Investor Webcast
October 27, 2021 • 2:00pm EDT
23rd Annual H.C. Wainwright Global Investment Conference
September 13 – September 15, 2021
Second Quarter 2021 Conference Call
July 29, 2021 • 4:30pm EDT
2021 Annual Meeting of Stockholders
May 11, 2021 • 11:00am EDT
First Quarter 2021 Conference Call
April 29, 2021 • 4:30pm EDT
Fourth Quarter 2020 Conference Call
February 25, 2021 • 4:30pm EDT
Investor Call
January 27, 2021 • 2:00pm EDT
13th Annual LD Micro Main Event Conference
December 15, 2020 • 2:00pm EDT
Virtual Fall Investor Summit
November 16, 2020 • 1:30pm EDT
Third Quarter 2020 Conference Call
October 22, 2020 • 4:30pm EDT
H.C. Wainwright 22nd Annual Global Investment Conference
September 16, 2020 • 9:30am EDT
LD 500 Conference
September 3, 2020
Second Quarter 2020 Conference Call
August 4, 2020 • 4:30pm EDT
Sidoti Virtual Conference
June 30, 2020 • 4:00pm EDT
2020 Annual Meeting of Stockholders
May 19, 2020 • 8:00am PDT
First Quarter 2020 Conference Call
April 30, 2020 • 4:30pm EDT
Gabelli Waste & Environmental Services Conference
April 2, 2020 • 1:45pm EDT
Fourth Quarter 2019 Conference Call
March 11, 2020 • 4:30pm EDT
Third Quarter 2019 Conference Call
November 12, 2019 • 4:30pm EDT
Aqua Metals Investor Presentation
October 10, 2019 • 11:00am EDT
8th Annual Gateway Conference
September 5, 2019 • 7:30am PDT
Canaccord Genuity’s 39th Annual Growth Conference
August 8, 2019 • 10:00am EDT
Second Quarter 2019 Conference Call
August 1, 2019 • 8:00am PDT
20th Annual B. Riley FBR Investor Conference
May 23, 2019 • 3:00pm PDT
First Quarter 2019 Conference Call (UPDATED)
May 14, 2019 • 1:30pm PDT
Special Meeting of Stockholders
May 9, 2019 • 8:00am PDT
2019 Annual Meeting of Stockholders
March 27, 2019 • 8:15am PDT
2019 LD Micro Virtual Conference
March 13, 2019 • 12:00pm PDT
Fourth Quarter 2018 Conference Call
February 28, 2019 • 4:30pm EDT
6th Annual ROTH New Industrials Corporate Access Day
December 11, 2018
Third Quarter 2018 Conference Call
November 7, 2018 • 4:30pm EDT
Second Quarter 2018 Conference Call
August 8, 2018 • 4:30pm EDT
First Quarter 2018 Conference Call
May 9, 2018 • 1:30pm PDT
Fourth Quarter 2017 Conference Call
March 15, 2018 • 2:00pm PDT
Third Quarter 2017 Conference Call
November 9, 2017 • 2:00pm EDT
Second Quarter 2017 Conference Call
August 9, 2017 • 2:00pm PDT
Oppenheimer Emerging Growth Conference
May 16, 2017
First Quarter 2017 Conference Call
May 9, 2017 • 2:00pm PDT
29th Annual Roth Conference
March 14, 2017 • 12:00pm PDT
Fourth Quarter 2016 Conference Call
February 14, 2017 • 8:00am PDT