Mimma Barila

MIMMA BARILA is the managing partner of Sidley’s Sydney office and the head of the Capital Markets group in Sydney. Her practice focuses on corporate finance and U.S. capital markets transactions. Mimma has extensive experience in representing issuers, investors and underwriters/managers in securities transactions, including SEC-registered offerings, Rule 144A and Regulation S offerings of secured and unsecured high yield and investment grade debt, primary and secondary equity offerings, issues of hybrid securities, exchange offers and liability management trades. Mimma’s clients include all major investment banks and public and private companies in various sectors including financial services, energy and resources, infrastructure, real estate, technology, packing and logistics, life sciences, aviation and transportation.

Mimma has been ranked as a Band 1 leading lawyer in the 2016-2026 editions of Chambers Asia-Pacific for Capital Markets: International, in the Australia chapter. She has also been ranked in the 2016-2026 editions of Chambers Global Capital Markets (US Law) in the Australia chapter.

“Mimma's knowledge of US public debt law is unmatched here in Australia. She is also extremely personable and authentic, which makes doing business with her a pleasant experience.”
Chambers Asia Pacific 2026

In Chambers Asia-Pacific 2025, clients described Mimma as “consistently the best practitioner for 144A/Reg S public bond issuance in the Australian market,” and commended her for being “first-class” as “she’s accessible to clients and provides actionable commercial as well as legal advice.” In past editions, clients also praised Mimma for being “very easy to deal with, very responsive, and provides clear advice and guidance on technical matters.” She has been recognized for her experience in relation to US law capital markets, often advising clients on Rule 144A transactions, high-yield and investment-grade debt offerings, IPO’s, rights issues and equity placements.

Mimma has also been repeatedly recognized in the corporate and debt and equity capital markets practice areas by Best Lawyers in Australia, Lexology Index and Legal 500 Asia Pacific.

Selected recent transactions and experience include acting as:

• Designated underwriters’ counsel for BHP, including in connection with its US$4.75 billion, US$3 billion, US$2.75 billion and US$1.5 billion SEC-registered debt offerings.
• Designated underwriters’ counsel for Woodside Energy, including in connection with its inaugural US$2 billion and subsequent US$3.5 billion SEC-registered debt offerings.
• Agents’ counsel in connection with SEC-registered debt offerings by Westpac Banking Corporation.
• Issuer’s counsel on multiple SEC-registered debt offerings by Amcor.
• Initial purchasers’ counsel on US$900 million debt offering by Whitehaven Coal.
• Issuer’s counsel to Sydney Airport Group on its US$1 billion debt offering.
• Issuer’s counsel to Goodman Group on multiple debt offerings, including its recent US$1.2 billion and €600 million debt offerings and concurrent tender offer.
• Initial purchasers’ counsel on US$1 billion and US$850 million debt offerings by Santos Limited.
• Issuer’s counsel to APA Group on its US$1.25 billion debt offering and concurrent tender offer.
• Issuer’s counsel to CSL Limited on its inaugural US$4 billion and subsequent aggregate US$1.25 billion debt offerings.
• Initial purchasers’ counsel on two US$650 million debt offerings by CIMIC Group.
• Initial purchasers’ counsel on US$600 million debt offering by Northern Star Resources.
• Initial purchasers’ counsel on US$700 million debt offering by South32 Group.
• Issuer’s counsel to Port of Newcastle on its inaugural US$300 million debt offering.
• Initial purchasers’ counsel on US$450 million and US$500 million debt offerings by Newcastle Coal Infrastructure Group.
• Issuer’s counsel to Transurban on its US$900 million debt offering and other debt offerings.
• Issuer’s counsel to Amcor on various debt offerings and tender and exchange offers.
• Issuer’s counsel to Virgin Australia on its US$425 million high-yield debt offering.
• Issuer’s counsel to InfraBuild on its inaugural high-yield US$325 million debt offering.
• Issuer’s counsel to Ausgrid on its inaugural US$1 billion debt offering.
• Agents’ counsel for U.S. medium-term note funding programs and securities offerings by Australia and New Zealand Banking Group Limited, Commonwealth Bank of Australia, Westpac Banking Corporation, ANZ Bank New Zealand Limited, ASB Bank Limited and Westpac New Zealand Limited.
• Agents’ and dealers’ counsel for the global medium term note funding program and securities offerings by NBN Group.
• Issuer’s counsel to Virgin Australia on its A$685 million initial public offering of ordinary shares on the Australian Securities Exchange.
• Issuer’s counsel to 29Metals on its A$527.8 million initial public offering of ordinary shares on the Australian Securities Exchange.
• Issuer’s counsel to Genworth on its A$583 million initial public offering of ordinary shares on the Australian Securities Exchange.
• Issuer’s counsel to Aston Resources on its A$400 million initial public offering of ordinary shares on the Australian Securities Exchange.
• Issuer’s counsel to Virtus Health on its A$346 million initial public offering of ordinary shares on the Australian Securities Exchange.
• Initial purchasers’ counsel on the A$2.65 billion initial public offering of ordinary shares of Viva Energy on the Australian Securities Exchange.
• Initial purchasers’ counsel on the A$438 million initial public offering of ordinary shares of Ventia Services Group on the Australian Securities Exchange.
• Initial purchasers’ counsel on the A$167 million initial public offering of ordinary shares of Wisetech Global on the Australian Securities Exchange.
• Initial purchasers’ counsel on the A$947 million initial public offering of ordinary shares of Link Administration on the Australian Securities Exchange.
• Initial purchasers’ counsel on the A$5.7 billion initial public offering of ordinary shares of Medibank on the Australian Securities Exchange.
• Initial purchasers’ counsel on the A$635 million initial public offering of ordinary shares of Nine Entertainment on the Australian Securities Exchange.
• Initial purchasers’ counsel on the A$3.5 billion initial public offering of stapled securities of Scentre Group on the Australian Securities Exchange.
• Initial purchasers’ counsel on the A$472 million initial public offering of stapled securities of SCA Property Group on the Australian Securities Exchange.
• Initial purchasers’ counsel on the NZ$1.7 billion initial public offering of ordinary shares of Mighty River Power on the New Zealand Stock Exchange and Australian Securities Exchange.
• Initial purchasers’ counsel on the A$725 million initial public offering of ordinary shares of Estia Health on the Australian Securities Exchange.
• Initial purchasers’ counsel on the NZ$1.8 billion initial public offering of ordinary shares of Meridian Energy on the Australian Securities Exchange.
• Issuer’s counsel to Goodman Group on its A$4 billion underwritten institutional placement.
• Issuer’s counsel to NEXTDC on its A$1.5 billion entitlement offer.
• Issuer’s counsel to Contact Energy on its NZ$525 million share placement.
• Issuer’s counsel to EBOS Group on its NZ$200 million share placement.
• Issuer’s counsel to Ryman Healthcare on its NZ$1 billion entitlement offer and share placement.
• Issuer’s counsel to Orica on multiple equity raises, including its A$400 million share placement and share purchase plan.
• Issuer’s counsel to Fletcher Building on its NZ$700 million entitlement offer and share placement.
• Underwriters’ counsel on A$675 million placement and securities purchase plan by APA Group.
• Issuer’s counsel to Abacus Property Group on the de-stapling and spin-off of its self-storage portfolio and A$225 million accelerated non-renounceable entitlement offer.
• Issuer’s counsel to Carsales.com Limited on its A$600 million underwritten accelerated renounceable entitlement offer with retail entitlements trading.
• Issuer’s counsel to Flight Centre Travel Group on its A$180 million underwritten institutional placement.
• Issuer’s counsel to CSL Limited on its A$6.3 billion share placement and share purchase plan
• Issuer’s counsel to Computershare on its A$835 million entitlement offer.
• Issuer’s counsel to Downer EDI on its A$400 million entitlement offer and share placement.
• Issuer’s counsel to Incitec Pivot Limited on its A$600 million share placement and share purchase plan.
• Issuer’s counsel to InvoCare Limited on its A$220 million share placement and share purchase plan.
• Issuer’s counsel to APA Group on multiple cash tender offers.
• Issuer’s counsel to Goodman Group on multiple liability management transactions.
• Issuer’s counsel to Newcastle Coal Infrastructure Group on multiple liability management transactions.
• Dealer managers’ counsel on the US$300 million, US$550 million and US$1.16 billion liability management transactions by Scentre Group.