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Panels from HopfON, a play on Hopfen, the German word for hops, is displayed in Munich, Germany, Friday, Sept. 20, 2024. The startup is using the organic waste, some from the hops harvest, to make sustainable building materials like acoustic panels and thermal insulation, with the twofold goal of reducing waste from the construction industry. (AP Photo/Matthias Schrader)

Panels from HopfON, a play on Hopfen, the German word for hops, is displayed in Munich, Germany, Friday, Sept. 20, 2024. The startup is using the organic waste, some from the hops harvest, to make sustainable building materials like acoustic panels and thermal insulation, with the twofold goal of reducing waste from the construction industry. (AP Photo/Matthias Schrader)

HopfON entrepreneur, Mauricio Fleischer Acuna touches a panel in Munich, Germany, Friday, Sept. 20, 2024. The startup is using the organic waste, some from the hops harvest, to make sustainable building materials like acoustic panels and thermal insulation, with the twofold goal of reducing waste from the construction industry. (AP Photo/Matthias Schrader)

HopfON entrepreneur, Mauricio Fleischer Acuna touches a panel in Munich, Germany, Friday, Sept. 20, 2024. The startup is using the organic waste, some from the hops harvest, to make sustainable building materials like acoustic panels and thermal insulation, with the twofold goal of reducing waste from the construction industry. (AP Photo/Matthias Schrader)

HopfON entrepreneur, Mauricio Fleischer Acuna poses in Munich, Germany, Friday, Sept. 20, 2024. The startup is using the organic waste, some from the hops harvest, to make sustainable building materials like acoustic panels and thermal insulation, with the twofold goal of reducing waste from the construction industry. (AP Photo/Matthias Schrader)

HopfON entrepreneur, Mauricio Fleischer Acuna poses in Munich, Germany, Friday, Sept. 20, 2024. The startup is using the organic waste, some from the hops harvest, to make sustainable building materials like acoustic panels and thermal insulation, with the twofold goal of reducing waste from the construction industry. (AP Photo/Matthias Schrader)