CONTENTS 1
1．EXPORT OF STEEL FLAT BARS TO MALAYSIA 1
2．EXPORT OF MILD STEEL FLAT BARS TO MALAYSIA 32
3．EXPORT OF TIN TO SWITZERLAND 66
4．IMPORT OF COMPOUND FERTILIZERS FROM SPAIN 118
5．IMPORT OF CHEMICAL FERTILIZERS FROM HOLLAND 157
6．EXPORT OF WOLFRAM TO MOROCCO 202
7．IMPORT OF COPPER CONCENTRATES FROM THE PHILIPPINES 246
8．IMPORT OF COPPER CONCENTRATES FROM THE PHILIPPINES 280
9．IMPORT OF GRAINS FROM AUSTRALIA 326
10．IMPORT OF ROCK PHOSPHATE FROM CANADA 368
KEY TO EXERCISES 425