Does anyone know of you, how deeply drilled is planned, in...

Does anyone know of you, how deeply drilled is planned, in skelflefte.
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http://www.mining-technology.com/projects/boliden/
"In 1924, the Holmtjarn gold deposit was discovered at Boliden, near Skelleftea in northern Sweden. Soon after, the Boliden Mining Company was formed. Although this mine shut in 1967, the concentrator has continued to treat ores from other Boliden mines in the area (40 over the years), and to supply the Ronnskär smelter which Boliden opened at Skelleftehamn on the Baltic coast in 1930. Today, the Maurliden open pit and the Kristineberg, Petiknas and Renström underground mines, plus the Boliden concentrator, are referred to as the company's Boliden Area Operations (BAO).
Since January 2004, when Boliden AB and Outokumpu Oy consolidated their zinc and copper mining and smelting interests, the operations have been owned by New Boliden, which is now the world’s fourth largest zinc-mining company as well as a leading metals-smelting firm and achieved record results in 2005.
GEOLOGY AND RESERVES

In the Skelleftea field, mineralisation is found in precambrian supracrustal rocks that have been structurally deformed by granite intrusions. Typically, complex sulphide deposits occur at the boundary between volcanic and sedimentary rocks, often at considerable depth."
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Kankberg

After an investment of SEK 475 the Kankberg mine was reopened in 2012 after being closed down in the 1990s, which is when gold and tellurium were discovered there. 250 kg of gold was produced during the first year. Kankberg is today 500 m deep.
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Renström

The Renström mine was opened in 1952 and is currently Sweden’s deepest at 1340 m.
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Thank you in advance