Ukraine’s President Volodymyr Zelensky rang the opening bell of the New York Stock Exchange on Tuesday as his country seeks billions in private investment to rebuild factories and industries. destroyed by Russia.

The Zelensky government has launched a platform of more than 500 projects worth $400 billion for foreign investors to help rebuild the Ukrainian economy, despite the ongoing war with Russia.

Zelensky appeared on a video screen behind the platform overlooking the New York Stock Exchange floor, where the opening bell traditionally rings. Traders clapped and shouted as a banner read: “We are free. We are strong. We are open for business.”

Fresh from a roundtable discussion with top executives from JP Morgan (NYSE: JPM ), Pfizer Inc (NYSE: PFE ) and other American companies, Zelensky said in English that Ukraine is already rebuilding its economy, more than six months after the Russian invasion.

“Ukraine is the story of a future victory and an opportunity for you to invest now in projects worth hundreds of billions of dollars, to share the victory with us,” he said.

The United States and its allies in Europe and Asia have already sent billions in aid, weapons and other security spending.

The “Advantage Ukraine” initiative – first announced at a recovery conference in Switzerland in July – focuses on 10 key sectors, including the military-industrial complex, energy, pharmaceuticals, metallurgy, timber and logistics.