"We encourage the private sector investors to participate in this, but we need to be very careful not to interfere on private agreements," Saudi Finance Minister Mohammed al-Jadaan said in a press conference at the end of the meeting.
Saudi Arabia is the current G20 chair.
The officials also reaffirmed their commitment to resolving differences over how to tax digital services and reaching a broad, consensus-based solution this year.
They said they expected to see proposals on international tax reform by October when they meet again.
"Fair taxation of international companies and large digital groups is more urgent than ever," German Finance Minister Olaf Scholz said after the meeting.
(Writer: Andrea Shalal, Davide Barbuscia, Marwa Rashad, Raya Jalabi, Christian Kraemer, Tom Sims | Editor: Matthew Lewis, Frances Kerry)
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