Chiles

Jordan Chiles captured the Big Ten all-around crown with her seventh perfect score of the season, leading UCLA to its second straight Big Ten championship gymnastics title on Saturday.

Chiles, the Big Ten gymnast of the year, posted a conference-record score of 39.825 and earned a perfect 10 in floor routine as the Bruins defeated Michigan, Minnesota and Michigan State with a total score of 198.100.

Janelle McDonald, who guided No. 5 UCLA to the regular season and conference championship crowns for the second straight year, was named the Big Ten coach of the year.

“Our team is just going up from here,” Chiles told Big Ten Network after the meet. “We haven’t hit our peak yet.

“Obviously, there are still things that we can work on as individuals, but I think the team environment is definitely there. I couldn’t be more proud of each and every single athlete that went up today and stepped in as well.”

UCLA opened with Chiles scoring a 9.925 on beam. Tiana Sumanasekera scored a 9.925, and Katelyn Rosen, Sydney Barros and Mika Webster-Longin each scored a 9.850. Rosen managed to achieve the feat after missing the last few weeks with a foot injury.

UCLA closed the first rotation in second place, 0.125 behind Michigan.

With Chiles leading the way on floor, Webster-Longin posted a 9.925, tying her career high. Sumanasekera had the same score and Ashlee Sullivan had a 9.950.

Riley Jenkins led UCLA in the vault with a 9.950. Webster-Longin celebrated her 9.875 routine with splits. Sumanasekera had a 9.850 in the event and Sullivan received a 9.850 on her Yurchenko. Chiles closed out the vault with a 9.925, keeping the Bruins in first place ahead of Michigan State by 0.325.

Chiles and Barros each had scores of 9.950 in the uneven bars — the best mark of the season in the discipline for Barros. Webster-Longin performed some celebratory splits again when she tied her season high with a 9.900 on the uneven bars. Sumanasekera and Nola Matthews each had a 9.875 in the event.

“We are coming for y’all,” Chiles said. “This is our year and I’m very proud to say that we are the Bruins.”

SANTIAGO, Chile, March 18 (UPI) — The United States is continuing efforts to secure supplies of critical minerals deemed vital to national security. Alongside copper, lithium and silver, one lesser-known metal is drawing increased attention: rhenium.

Used primarily in the aerospace, energy and petrochemical industries, rhenium plays a key role in high-performance applications. Experts say it also holds potential in the global energy transition because it can act as a catalyst in producing green hydrogen.

Chile is the world’s largest rhenium producer, accounting for about 50% of global output. The metal is atomic No. 75 on the Periodic Table of Elements.

Since Friday, Chilean officials have held consultations on critical minerals and rare earth elements with the administration of President Donald Trump, seeking a bilateral agreement to strengthen supply chains and promote strategic investment.

“Chile controls nearly half of a mineral that the United States and China cannot produce in sufficient quantities. Washington reinstated rhenium to its critical minerals list in 2025 and explicitly included it in the bilateral mining agreement with Chile. That makes it a genuine geopolitical asset, not just a mining one,” mining market specialist Víctor Pérez, an engineering professor at Adolfo Ibáñez University, told UPI.

Manuel Reyes, a mining engineering professor at Andrés Bello University, said the United States considers rhenium a national security priority because of its critical role and a lack of substitutes in aerospace and defense.

“Although rhenium does not carry the financial weight of copper or lithium, it functions as a reputational asset that keeps Chile on global strategic radars. More as a necessary logistics partner than as a decision-making power,” he said.

Pérez said Chile’s rhenium exports are expected to range between $100 million and $200 million this year, compared with an estimated $60 billion in copper exports. Still, he said its strategic importance is unique “because it has no real substitute in aerospace and defense applications.”

Chile holds the world’s largest reserves at 1,300 metric tons, followed by the United States with 400 metric tons, Russia with 310 metric tons and Kazakhstan with 190 metric tons, according to Reyes.

Rhenium trades at about $2,000 per kilogram, though prices have climbed in 2026 to roughly $6,000 per kilogram, he said.

About 70% to 80% of global rhenium is used in superalloys for aviation and defense turbines. “It is the metal that allows aircraft engines and military turbines to withstand extreme temperatures without deforming,” Pérez said.

Rhenium is known as a by-product mineral because it is not found alone, but rather extracted from copper-related ores, which makes production complex. Chile’s large-scale copper mining operations enable its recovery, as processing captures gases released during molybdenum concentrate roasting and chemically extracts the metal.

Reyes said Chile remains highly dependent on external demand.

“Reserve management and supply continuity depend on the technical and national security requirements of powers such as the United States, which ultimately drive demand,” he said.