Miner Rio Tinto shareholders have taken up 96.97% of the shares offered to them as part of the miner's $15.2bn fully underwritten rights issue. Major shareholder Chinalco has taken up its entitlement in full. Fresnillo, Anglo American and Lonmin are also lower. Meanwhile, Sierra Leone-focused miner African Minerals has raised £63.8m ($105m) from a cash placing with institutional investors in North America and the UK.Only a handful of sectors amongst the risers, with Beverages the best of the lot.Top performing sectors so far todayBeverages 6,361.74 +0.53%Electronic & Electrical Equipment 1,254.25 +0.11%Personal Goods 7,596.37 +0.09%Technology Hardware & Equipment 260.84 +0.02%Aeronautics and Defence NULL 0.00%Bottom performing sectors so far todayMining 13,908.22 -3.69%Automobiles & Parts 1,893.64 -3.61%Forestry & Paper 2,189.28 -2.87%Media 2,497.21 -2.63%Aerospace and Defence 2,488.44 -2.32%