BankBoston Corp. has announced moves designed to bolster its longtime  presence in South America. 
The company is expanding its capital markets and syndicated lending  operations in Brazil and spending $100 million to build a new headquarters   in Buenos Aires for its Argentina operations.   
  
The two moves come barely a month after the $69 billion-asset company  reorganized its Asian operations to develop capital markets business in   that part of the world.   
BankBoston plans to develop underwriting of stocks and bonds in Brazil  as Brazilian companies turn to the domestic capital markets for funding. 
  
The banking company also confirmed reports quoting BankBoston president  Henrique de Campos Meirelles on plans to expand advisory activities as   privatization increases in Brazil, Latin America's largest economy.   
Stephen DeSalvo, managing director of emerging capital markets and  syndications, said BankBoston expects to do more international debt   underwriting for Brazilian companies as well. Last year the banking company   underwrote $1.675 billion in international bonds for emerging market   customers, including $550 million on behalf of Brazilian borrowers.       
"We plan to be an active player on international markets, " Mr. DeSalvo  said. 
  
He predicted that both privatizations and economic growth will spur  increased borrowings by Brazilian companies this year. 
"We are very bullish on the tremendous demand for capital out of  Brazil," Mr. DeSalvo said. 
In a ceremony attended by President Carlos Menem of Argentina, Mr.  Meirelles, and BankBoston chairman Charles A. "Chad" Gifford, the company   last week broke ground for a $100 million, 29-story headquarters.   
The new building, which will accommodate some 2,400 employees, will  replace a landmark headquarters built early in the century. That building   will continue to house data processing and telemarketing and serve as the   company's main retail and customer service branch in the city.     
  
Few foreign banking companies are as big in Argentina as BankBoston. It  runs the fourth-largest privately owned bank in the country, with 81   branches and $6.6 billion of assets there.   
BankBoston opened its first Latin American office in Buenos Aires, in  1917, and has since established 150 offices in 10 countries with some 6,800   employees. Revenues from Latin America reached $1 billion last year, around   16% of total earnings.     
Mr. Meirelles has often said that he envisions opportunities for further  growth in Latin America in capital markets, private banking, retail   banking, and asset management.   
As part of a program to expand business, the company last summer  announced plans to build 70 new branches across Argentina. 
That program, combined with the acquisition of Deutsche Bank's Argentine  retail operations in September, would give BankBoston 140 branches in   Argentina by then. No U.S. banking company has so large a network in a   foreign country.