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Constantine Karayannopoulos
Director/Board Member at
GRID METALS CORP.
Net worth: - $ as of 2026-05-30
Profile
Constantine E.
Karayannopoulos was the founder of Neo Lithium Corp., founded in 2016, where the title held was Non-Executive Chairman from 2016 to 2022.
Mr. Karayannopoulos was the founder of Neo Performance Materials, Inc., founded in 1994, where the title held was Chief Executive Officer & Director in 2023.
Current jobs include Chairman at Neo Chemicals & Oxides LLC since 2016, Independent Director at Grid Metals Corp.
since 2024, Director at Fredonia Mining, Inc. since 2026, and Member at Canada China Business Council.
Former jobs include President & Chief Executive Officer at AMR Technologies, Inc., President & Chief Executive Officer at Magnequench LLC, Chairman & Chief Executive Officer at Neo Performance Materials from 2013 to 2016, President, CEO, COO & Executive Vice President at Neo Material Technologies Inc. from 1994 to 2012, Chairman at Neo C&O LLC, Independent Director at Lithium Americas Corp.
from 2011 to 2015, Director at Lithium Royalty Corp., Manager-Business Development at Praxair Canada, Inc., and Principal at Union Carbide Canada Ltd. from 1986 to 1994.
Education includes undergraduate and graduate degrees from the University of Toronto.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
GRID METALS CORP. -.--% | 2025-11-09 | 0 ( -.--% ) | - $ | 2026-05-30 |
Constantine Karayannopoulos active positions
| Companies | Position | Start |
|---|---|---|
| GRID METALS CORP. | Director/Board Member | 2024-06-06 |
| FREDONIA MINING INC. | Director/Board Member | 2026-05-28 |
Canada China Business Council
 Canada China Business Council Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit business association which facilitate and promote businesses | Corporate Officer/Principal | - |
Neo Chemicals & Oxides LLC
 Neo Chemicals & Oxides LLC Other Metals/MineralsNon-Energy Minerals Manufactures and supplies metal ores | Chairman | 2016-08-30 |
Former positions of Constantine Karayannopoulos
| Companies | Position | End |
|---|---|---|
| NEO PERFORMANCE MATERIALS INC. | Chief Executive Officer | 2023-07-06 |
| NEO LITHIUM CORP. | Founder | 2021-12-31 |
| MOLYCORP INC | Chief Executive Officer | 2016-07-31 |
| LITHIUM AMERICAS CORP | Director/Board Member | 2014-12-31 |
Neo Material Technologies Inc.
 Neo Material Technologies Inc. Chemicals: SpecialtyProcess Industries Processes and develops new powders and rare earth materials | Chief Executive Officer | 2012-05-31 |
Training of Constantine Karayannopoulos
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
50
1st degree connections
16
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 16 |
|---|---|
Grid Metals Corp.
 Grid Metals Corp. Other Metals/MineralsNon-Energy Minerals Engages in exploration of palladium, lithium, nickel and copper metals | Non-Energy Minerals |
AMR Technologies, Inc.
 AMR Technologies, Inc. Precious MetalsNon-Energy Minerals Processes and develops rare earth materials | Non-Energy Minerals |
Lithium Americas Corp. /Old/
 Lithium Americas Corp. /Old/ Chemicals: AgriculturalProcess Industries Mines for lithium, potassium, borax and other minerals | Process Industries |
Magnequench LLC
 Magnequench LLC Metal FabricationProducer Manufacturing Provides end-to-end magnetic solutions for automotive, electronic and household applications | Producer Manufacturing |
Praxair Canada, Inc.
 Praxair Canada, Inc. Chemicals: SpecialtyProcess Industries Produces, sells, and distributes atmospheric, process, and specialty gases | Process Industries |
University of Toronto
 University of Toronto Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Neo Performance Materials
 Neo Performance Materials Other Metals/MineralsNon-Energy Minerals Manufacturers custom engineered rare earth and rare metal product | Non-Energy Minerals |
Neo Material Technologies Inc.
Neo Material Technologies Inc. Chemicals: SpecialtyProcess Industries Processes and develops new powders and rare earth materials | Process Industries |
Canada China Business Council
Canada China Business Council Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit business association which facilitate and promote businesses | Commercial Services |
Union Carbide Canada Ltd.
 Union Carbide Canada Ltd. Chemicals: Major DiversifiedProcess Industries Manufactures chemicals | Process Industries |
Neo Lithium Corp.
 Neo Lithium Corp. Chemicals: AgriculturalProcess Industries Engages in exploration and development of lithium deposits | Process Industries |
Neo Performance Materials, Inc.
 Neo Performance Materials, Inc. Chemicals: SpecialtyProcess Industries Produces and refines magnetic compounds, powders, tantalum, niobium, hafnium & rhenium, bonded neodymium-iron-boron powders & specialty chemicals | Process Industries |
Neo Chemicals & Oxides LLC
Neo Chemicals & Oxides LLC Other Metals/MineralsNon-Energy Minerals Manufactures and supplies metal ores | Non-Energy Minerals |
Neo C&O LLC | |
Lithium Royalty Corp.
 Lithium Royalty Corp. Electrical ProductsProducer Manufacturing Operates as a battery royalty and streaming company | Producer Manufacturing |
Fredonia Mining, Inc.
 Fredonia Mining, Inc. Financial ConglomeratesFinance Mines for gold and other minerals | Finance |
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- Constantine Karayannopoulos
