Northern Star Resources Ltd (NST.AU) saw its stock price plummet by 5.13% in Tuesday's trading session, as investors reacted to the company's revised production guidance and ongoing assessment of US tariff exposures. The gold miner's shares came under pressure following a series of announcements that raised concerns about its near-term performance and potential headwinds.

The company revised its FY25 production and cost guidance to 1,630-1,660Koz at A$2,100-2,200/oz, which may have disappointed some investors expecting more optimistic projections. Additionally, Northern Star reported quarterly gold sales of 385Koz, though the market's reaction suggests this figure might not have met expectations. The miner also announced accelerated growth capital and exploration guidance for FY25, indicating increased activity but potentially higher costs.

Adding to the negative sentiment, Northern Star Resources stated that it continues to assess the current and evolving tariff exposures announced by the US government. This ongoing evaluation highlights potential risks to the company's operations and profitability, particularly if new tariffs impact the gold mining sector or related industries. The combination of revised guidance, accelerated spending, and regulatory uncertainties appears to have prompted investors to reassess their positions, leading to the significant drop in share price.