Chad Yeftich

Chad Yeftich is Vice President of Corporate Development and External Affairs at Ioneer (NASDAQ: IONR; ASX: INR), the company advancing Rhyolite Ridge, a lithium-boron project in Nevada and one of the few known deposits in the world that can produce both lithium and boron. Resource investors should know him for a practical reason: he sits where capital markets meet one of the most closely watched US critical minerals projects — minerals the US government designates as essential to economic and national security — and his public commentary centers on how the country will source the materials its defense and electrification programs depend on.

His path into mining ran through finance. Yeftich has more than 20 years of investment industry experience, holding analyst and portfolio management roles at Maverick Capital, H.I.G. Capital, and Trafelet Brokaw & Company after starting at PwC, according to Ioneer's management biography. For roughly the past seven years, he has focused on investing in and helping develop electrification-related projects worldwide. At Ioneer, that remit has intersected with real milestones: a joint venture with South Africa's Sibanye-Stillwater at Rhyolite Ridge and a loan of up to $996 million from the US Department of Energy's Loan Programs Office, the federal program that finances advanced energy and minerals projects.

His analysis starts with end demand. In comments to National Defense Magazine about the US Army's Strategic Capital Initiative in October 2026, he argued that boron is "essential to everything from specialty glass to armor plating and precision guidance systems." That framing carries through to how he presents the project's economics: lithium carbonate for batteries, sold under offtake agreements — contracts in which buyers commit to purchasing future production — with Ford and Prime Planet Energy & Solutions, the Toyota-Panasonic battery joint venture, alongside boric acid for glass, ceramics, agriculture and defense manufacturing.

Rhyolite Ridge is also a case study in how development-stage companies — those still building toward first production — fund new US mines. The project spent years working through federal review of Tiehm's buckwheat, an endangered desert wildflower found at the site, and then combined a strategic joint venture, a federal loan and customer offtakes. Yeftich's appearances, including the 2026 discussion "The Arsenal of Electrification – Securing the North American Defense," add a defense-policy angle that standard equity research on junior miners rarely covers.

Following Yeftich offers a window into the mechanics of US critical minerals development: how projects get financed, permitted and matched with customers. His current focus is advancing Rhyolite Ridge toward production and making the case that boron deserves a place alongside lithium in that conversation.