Stardust Power shares rise 15.80% intraday after obtaining final air quality permit for Oklahoma lithium refinery and planning to develop U.S.'s largest lithium refinery with 50,000-ton annual battery-grade output.

think> Okay, let's tackle this query. The user wants me to transform a given text into a concise news headline following specific rules. Let me start by understanding the example they provided. The input includes a company name, a percentage change, a time period (premarket, intraday, after-hours), and a reason for the price movement. The output is a structured headline with those elements. First, I need to extract all the necessary information from the user's input. The company name here is Stardust Power. The percentage change is 15.7960199%, which I should round to two decimal places, so that becomes 15.80%. The time period is intraday. The reason for the price movement has two points: the first is about obtaining an air quality construction permit in Oklahoma, which is the final major permit needed, reducing regulatory risk. The second point mentions Stardust Power as a U.S. battery-grade lithium developer planning to build one of the country's largest lithium refineries with an expected annual output of 50,000 tons of battery-grade lithium products pending financing. Now, applying the transformation rules. The company name stays the same. The percentage is rounded to two decimals. The time period is intraday. The brief reason should include both key points but concisely. I need to make sure to mention the permit and the project details. Also, the example output uses "surged" for a significant increase. Since 15.80% is a large jump, using "surged" seems appropriate. Wait, the user's example output uses "surged" for a 4.23% increase. Maybe "soared" would be better for a 15.80% increase? Let me check. The example uses "surged" for a 4.23% change, so maybe "surged" is acceptable regardless of the magnitude. Alternatively, "soared" might be more fitting for a larger percentage. But the example uses "surged," so I should follow that unless there's a specific instruction to vary the verb based on percentage. The rules don't mention that, so I'll stick with "surged." Next, the two reasons need to be combined into a brief reason. The first point is the permit from Oklahoma's Department of Environmental Quality, which is the final major permit, reducing regulatory time risk. The second is the company's plan to build one of the largest refineries in the U.S., producing 50,000 tons annually, pending financing. I need to present these concisely without losing key details. Putting it all together: Stardust Power surged 15.80% intraday trading, as the company secured the final major permit... and plans to develop... etc. I should structure the sentence to include both points but keep it brief. Let me check the example again. The example includes both the permit and the project details in the reason. So I'll follow that structure. Now, ensuring the percentage is correctly rounded. 15.7960199% rounds to 15.80%. No trailing zeros, so it's 15.80%. The time period is intraday. The company name is correct. The reasons are the two points. The example also includes a paragraph break, but the user might want it in one paragraph? The example has a line break, but maybe that's just formatting. The user's instruction says to write the articles in English, so I'll use proper punctuation and structure. Let me draft the headline: "Stardust Power surged 15.80% intraday trading, as the company secured the final major permit for its lithium refinery in Muskogee, Oklahoma, from the Oklahoma Department of Environmental Quality on January 20, 2026, significantly reducing regulatory time risk. As a U.S. battery-grade lithium developer, the company plans to advance one of the country's largest lithium refineries, with an expected annual output of 50,000 tons of battery-grade lithium products pending financing decisions." Wait, the input mentions the permit was obtained on 2026-01-20. Should I include the date? The example didn't include the date. Let me check the example input. The example input mentions the company announced the project in the first point, but the output didn't include the date. So maybe the date isn't necessary unless it's critical. Since the user's example omits the date, I should follow that. So remove the date from the headline. Revised: "Stardust Power surged 15.80% intraday trading, as the company secured the final major permit for its lithium refinery in Muskogee, Oklahoma, from the Oklahoma Department of Environmental Quality, significantly reducing regulatory time risk. As a U.S. battery-grade lithium developer, the company plans to advance one.