location approximate size ( sq . ft. ) segment majority owned or leased .

Table:
location | approximatesize ( sq . ft. ) | segment | majorityowned orleased
hamilton new zealand | 96000 | global institutional global industrial | owned
calgary alberta canada | 94000 | global energy | owned
kwinana australia | 87000 | global institutional global industrial | owned
revesby australia | 87000 | global institutional global industrial | owned
yangsan korea | 85000 | global energy global industrial | owned
cisterna italy | 80000 | global industrial | owned
rovigo italy | 77000 | global institutional | owned
cuautitlan mexico | 76000 | global institutional global industrial | owned
barueri brazil | 75000 | global institutional global industrial | leased
mullingar ireland | 74000 | global institutional global industrial | leased
mosta malta | 73000 | global institutional | leased
generally , our manufacturing facilities are adequate to meet our existing in-house production needs .
we continue to invest in our plant sites to maintain viable operations and to add capacity as necessary to meet business imperatives .
most of our manufacturing plants also serve as distribution centers .
in addition , we operate distribution centers around the world , most of which are leased , and utilize third party logistics service providers to facilitate the distribution of our products and services .
at year end 2016 ecolab 2019s corporate headquarters was comprised of three adjacent multi-storied buildings located in downtown st .
paul , minnesota .
the main 19-story building was constructed to our specifications and is leased through june 30 , 2018 .
the second building is leased through 2019 .
the company intends to vacate the current leased buildings in 2018 .
the third building is owned .
ecolab acquired the 17-story north tower from the travelers indemnity company in downtown st .
paul , minnesota on august 4 , 2015 .
this building became the corporate headquarters in 2017 .
a 90 acre campus in eagan , minnesota is owned and provides for future growth .
the eagan facility houses a significant research and development center , a data center and training facilities as well as several of our administrative functions .
we also have a significant business presence in naperville , illinois , where our water and paper operating segment maintain their principal administrative offices and research center .
as discussed in part ii , item 8 , note 6 , 201cdebt and interest 201d of this form 10-k , the company acquired the beneficial interest in the trust owning these facilities during 2015 .
our energy operating segment maintains administrative and research facilities in sugar land , texas and additional research facilities in fresno , texas .
in december 2013 , we announced the construction of a new 133000 square-foot headquarters building adjacent to the existing sugar land operations which was completed in early 2016 and renovation of the existing 45000 square-foot research facilities in sugar land .
significant regional administrative and/or research facilities are located in leiden , netherlands , campinas , brazil , and pune , india , which we own , and in monheim , germany , singapore , shanghai , china , and zurich , switzerland , which we lease .
we also have a network of small leased sales offices in the united states and , to a lesser extent , in other parts of the world .
item 3 .
legal proceedings .
discussion of legal proceedings is incorporated by reference from part ii , item 8 , note 15 , 201ccommitments and contingencies , 201d of this form 10-k and should be considered an integral part of part i , item 3 , 201clegal proceedings . 201d other environmental-related legal proceedings are discussed at part i , item 1 ( c ) above , under the heading 201cenvironmental and regulatory considerations 201d and is incorporated herein by reference .
item 4 .
mine safety disclosures .
not applicable. .

Question: how many square feet are leased by the company?
Answer: 222000
Calculation: add(75000, 74000), add(#0, 73000)