China's official gold buying took a pause last year but was back for the second straight month in December.NurPhoto/NurPhoto/Getty ImagesChina has increased its gold reserves amid economic challenges and US dollar strength.China's gold buying followed a pause due to high prices and economic recovery struggles.Goldman Sachs predicts gold could reach $3,000 per ounce by the second quarter of 2026 amid central bank demand.China appears to be loading up on gold ahead of US President Donald Trump's inauguration on January 20.In December, China's central bank added 330,000 troy ounces of gold to its reserves in a second month of expansion of its gold stash, according to official data released on Tuesday.As of December, China held 73.29 million ounces of gold, up from 72.96 million in November.China's building up of its gold reserves came after a six-month hiatus, during which the world's second-largest economy held back on purchasing amid record gold prices.The spot gold price reached a historic high of nearly $2,800 an ounce before pulling back.Spot gold is now around $2,650 an ounce due to gains in the US dollar following Trump's election.