The S&P/ASX 200 Index (ASX: XJO) is having a decent session on Wednesday. In afternoon trade, the benchmark index is up 0.35% to 8,725.1 points.
Four ASX shares rising more than most today are listed below. Here's why they are pushing higher:

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Brazilian Rare Earths Ltd (ASX: BRE)
The Brazilian Rare Earths share price is up 7% to $5.53. This morning, this rare earths developer announced new exploration results at the Sulista Project in Brazil. The company revealed that its latest exploration campaign has delivered excellent results across multiple targets, materially expanding the Sulista mineralised footprint and reinforcing Sulista East as the anchor deposit within a rapidly growing district-scale rare earth development opportunity. Brazilian Rare Earths' CEO and managing director, Bernardo da Veiga, commented: "Together, these results strengthen the basis for our near-term scoping study and support our hub-and-spoke development strategy across the Rocha da Rocha Province."
Lynas Rare Earths Ltd (ASX: LYC)
The Lynas Rare Earths share price is up over 12% to $19.95. After the market close on Tuesday, this rare earths giant announced a revised long-term supply agreement with JARE, extending to 2038 and establishing a firm offtake for 5,000 tonnes of NdPr per year at a US$110/kg price floor. Lynas' CEO and managing director, Amanda Lacaze, said: "We are delighted that the revised 12-year availability and supply agreement with JARE will support both Japanese industry and the continued growth and development of Lynas. This new agreement will ensure continued reliable supply of rare earth products that are strategically important to Japanese industry and its global market, and at the same time, the implementation of fair market pricing will reduce price volatility for Lynas and enable continued growth and investment in our operations."
Macquarie Technology Group Ltd (ASX: MAQ)
The Macquarie Technology share price is up 5% to $65.95. This morning, Macquarie Technology revealed that it has secured a $200 million hybrid investment from the government-backed National Reconstruction Fund Corporation. It notes that this funding will support the company's development of sovereign cyber security and cloud services for critical industries and government.
Ora Banda Mining Ltd (ASX: OBM)
The Ora Banda Mining share price is up 18% to $1.38. This has been driven by the release of an update on the miner's Round Dam gold deposit in Western Australia. Management revealed that its new mineral resource is 25.6Mt at 1.6g/t for 1.330 million ounces. This is up materially from 125,000 ounces previously. Ora Banda's managing director, Luke Creagh, said: "We are incredibly excited by the potential of Round Dam to become a substantial mining operation, as the company continues to advance its study work into the construction of a standalone ~3mtpa processing facility at Davyhurst."