ATLAS CORP.                          Exhibit 8.1
SUBSIDIARIES

COMPANY NAMEINCORPORATION JURISDICTIONOWNERSHIP
1
Atlas Corp.Republic of Marshall IslandsNYSE Listed (Various Shareholders)
2Seaspan CorporationRepublic of Marshall IslandsAtlas Corp. owns 100%
3Seaspan Management Services LimitedBermudaSeaspan Corporation owns 100%
4Seaspan Advisory Services LimitedBermudaSeaspan Management Services Ltd. owns 100%
5Seaspan Ship Management Ltd.British ColumbiaSeaspan Management Services Ltd. owns 100%
6Seaspan Capital Ltd.British ColumbiaSeaspan Ship Management owns 100%
7Seaspan Crew Management Ltd.BahamasSeaspan Ship Management Ltd. owns 100%
8Seaspan Crew Management India Private LimitedIndiaSeaspan Ship Management Ltd. owns 0.01% and Seaspan Crew Management Ltd. owns 99.99%
9Seaspan Investment I Ltd.Republic of Marshall IslandsSeaspan Corporation owns 100%
10Seaspan YZJ 983 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
11Seaspan YZJ 985 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
12Seaspan 1037 Ltd. (ex Seaspan YZJ 993 Ltd)Republic of Marshall IslandsSeaspan Corporation owns 100%
13Seaspan Holding 140 Ltd.Republic of Marshall IslandsSeaspan Corporation owns 100%
14Seaspan 140 Ltd.Republic of Marshall IslandsSeaspan Holding 140 Ltd. owns 100%
15Seaspan (Asia) CorporationRepublic of Marshall IslandsSeaspan Corporation owns 100%
16Seaspan Containership 2180 Ltd.Republic of Marshall IslandsSeaspan (Asia) Corporation owns 100%
17Seaspan Containership 2181 Ltd.Republic of Marshall IslandsSeaspan (Asia) Corporation owns 100%
18Seaspan Containership S452 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
19Seaspan Holdco II Ltd.Republic of Marshall IslandsSeaspan Corporation owns 100%
20Seaspan Holdco III Ltd.Republic of Marshall IslandsSeaspan Corporation owns 100%
21Seaspan Holdco VI Ltd.Republic of Marshall IslandsSeaspan Corporation
22Seaspan Holdco VII Ltd.Republic of Marshall IslandsSeaspan Corporation
23Seaspan Holdco VIII Ltd.Republic of Marshall IslandsSeaspan Corporation
24Seaspan Holdco IX Ltd.Republic of Marshall IslandsSeaspan Corporation
25Seaspan Holdco X Ltd.Republic of Marshall IslandsSeaspan Corporation
26Seaspan Holdco XI Ltd.Republic of Marshall IslandsSeaspan Corporation
27Seaspan Holdco XII Pte. Ltd.SingaporeSeaspan Holdco III owns 100%
28Seaspan Holdco XIII Pte. Ltd.SingaporeSeaspan Holdco III owns 100%
29Seaspan Holdco XIV Pte. Ltd.SingaporeSeaspan Holdco III owns 100%
30Seaspan Holdco XV Pte. Ltd.SingaporeSeaspan Holdco III owns 100%
31Seaspan Holdco XVI Pte. Ltd.SingaporeSeaspan Holdco III owns 100%
32Seaspan Holdco XVII Pte. Ltd.SingaporeSeaspan Holdco III owns 100%



COMPANY NAMEINCORPORATION JURISDICTIONOWNERSHIP
33Seaspan Holdco XVIII Ltd.Republic of Marshall IslandsSeaspan Corporation
34Seaspan Holdco XIX Ltd.Republic of Marshall IslandsSeaspan Corporation
35Seaspan Holdco XX Ltd.Republic of Marshall IslandsSeaspan Corporation
36Seaspan Holdco XXI Ltd.Republic of Marshall IslandsSeaspan Corporation
37Seaspan Holdco XXII Ltd.Republic of Marshall IslandsSeaspan Corporation
38Seaspan Holdco XXIII Ltd.Republic of Marshall IslandsSeaspan Corporation
39Seaspan Holdco XXIV Ltd. (ex Seaspan 1544 Ltd.)Republic of Marshall IslandsSeaspan Corporation
40Seaspan Holdco XXV Ltd.Republic of Marshall IslandsSeaspan Corporation
41Seaspan Holdco XXVI Ltd.Republic of Marshall IslandsSeaspan Corporation
42Seaspan Holdco XXVII Ltd.Republic of Marshall IslandsSeaspan Corporation
43Seaspan Holdco XXVIII Ltd.Republic of Marshall IslandsSeaspan Corporation
44Seaspan Holdco XXIX Ltd.Republic of Marshall IslandsSeaspan Corporation
45Seaspan Holdco XXX Ltd.Republic of Marshall IslandsSeaspan Corporation
46Seaspan Holdco XXXI Ltd.Republic of Marshall IslandsSeaspan Corporation
47Seaspan Holdco XXXII Ltd.Republic of Marshall IslandsSeaspan Corporation
48Seaspan Holdco XXXIII Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
49Seaspan Holdco XXXIV Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
50Seaspan Holdco XXXV Ltd.Republic of Marshall IslandsSeaspan Corporation
51Seaspan Holdco XXXVI Ltd.Republic of Marshall IslandsSeaspan Corporation
52Seaspan Holdco XXXVII Ltd.Republic of Marshall IslandsSeaspan Corporation
53Seaspan Holdco XXXVIII Ltd.Republic of Marshall IslandsSeaspan Corporation
54Seaspan Holdco XXXIX Ltd.Republic of Marshall IslandsSeaspan Corporation
55Seaspan Holdco XL Ltd.Republic of Marshall IslandsSeaspan Corporation
56Seaspan Holdco XLI Ltd.Republic of Marshall IslandsSeaspan Corporation
57Seaspan Holdco XLII Ltd.Republic of Marshall IslandsSeaspan Corporation
58Seaspan Holdco XLIII Ltd.Republic of Marshall IslandsSeaspan Corporation
59Seaspan Holdco XLIV Ltd.Republic of Marshall IslandsSeaspan Corporation
60Seaspan Holdco XLV Ltd.Republic of Marshall IslandsSeaspan Corporation
61Seaspan Holdco XLVI Ltd.Republic of Marshall IslandsSeaspan Corporation
62Seaspan Holdco XLVII Ltd.Republic of Marshall IslandsSeaspan Corporation
63Seaspan Holdco XLVIII Ltd.Republic of Marshall IslandsSeaspan Corporation
64Seaspan Holdco XLIX Ltd.Republic of Marshall IslandsSeaspan Corporation
65Seaspan Holdco L Ltd.Republic of Marshall IslandsSeaspan Corporation



COMPANY NAMEINCORPORATION JURISDICTIONOWNERSHIP
66Seaspan Holdco LI Ltd.Republic of Marshall IslandsSeaspan Corporation
67Seaspan Holdco LII Ltd.Republic of Marshall IslandsSeaspan Corporation
68Seaspan Holdco LIII Ltd.Republic of Marshall IslandsSeaspan Corporation
69Seaspan Holdco LIV Ltd.Republic of Marshall IslandsSeaspan Corporation
70Seaspan Holdco LV Ltd.Republic of Marshall IslandsSeaspan Corporation
71Seaspan Holdco LVI Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
72Seaspan Holdco LVII Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
73Seaspan Holdco LVIII Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
74Seaspan Containership 145 Ltd.Republic of Marshall IslandsSeaspan Corporation
75Seaspan Containership 146 Ltd.Republic of Marshall IslandsSeaspan Corporation
76Seaspan Containership 147 Ltd.Republic of Marshall IslandsSeaspan Corporation
77Seaspan Containership I Ltd.Republic of Marshall IslandsSeaspan Corporation
78Seaspan Containership II Ltd.Republic of Marshall IslandsSeaspan Corporation
79Seaspan Containership III Ltd.Republic of Marshall IslandsSeaspan Corporation
80Seaspan Containership IV Ltd.Republic of Marshall IslandsSeaspan Corporation
81Seaspan Containership V Ltd.Republic of Marshall IslandsSeaspan Corporation
82Seaspan Containership VI Ltd.Republic of Marshall IslandsSeaspan Corporation
83Seaspan Containership 2049 Ltd.Republic of Marshall IslandsSeaspan Corporation
84Seaspan Containership 2050 Ltd.Republic of Marshall IslandsSeaspan Corporation
85Seaspan Containership 1344 Ltd.Republic of Marshall IslandsSeaspan Corporation
86Seaspan Containership 1345 Ltd.Republic of Marshall IslandsSeaspan Corporation
87Seaspan Containership 1346 Ltd.Republic of Marshall IslandsSeaspan Corporation
88Seaspan Containership 1347 Ltd.Republic of Marshall IslandsSeaspan Corporation
89Seaspan Containership 1369 Ltd.Republic of Marshall IslandsSeaspan Corporation
90Seaspan Containership 1370 Ltd.Republic of Marshall IslandsSeaspan Corporation
91Seaspan Containership 1371 Ltd.Republic of Marshall IslandsSeaspan Corporation
92Seaspan Containership 1372 Ltd.Republic of Marshall IslandsSeaspan Corporation
93Seaspan Containership 1373 Ltd.Republic of Marshall IslandsSeaspan Corporation
94Seaspan Containership 1384 Ltd.Republic of Marshall IslandsSeaspan Corporation
95Seaspan Containership 1385 Ltd.Republic of Marshall IslandsSeaspan Corporation
96Seaspan Containership 1386 Ltd.Republic of Marshall IslandsSeaspan Corporation
97Seaspan Containership 1387 Ltd.Republic of Marshall IslandsSeaspan Corporation
98Seaspan Containership 1388 Ltd.Republic of Marshall IslandsSeaspan Corporation



COMPANY NAMEINCORPORATION JURISDICTIONOWNERSHIP
99Seaspan Containership 1389 Ltd.Republic of Marshall IslandsSeaspan Corporation
100Seaspan Containership 1390 Ltd.Republic of Marshall IslandsSeaspan Corporation
101Seaspan Containership 1394 Ltd.Republic of Marshall IslandsSeaspan Corporation
102Seaspan Containership 1395 Ltd.Republic of Marshall IslandsSeaspan Corporation
103Seaspan Containership 1396 Ltd.Republic of Marshall IslandsSeaspan Corporation
104Seaspan Containership 1397 Ltd.Republic of Marshall IslandsSeaspan Corporation
105Seaspan Containership 1398 Ltd.Republic of Marshall IslandsSeaspan Corporation
106Seaspan Containership H1562 Ltd.Republic of Marshall IslandsSeaspan Corporation
107Seaspan Containership H1563 Ltd.Republic of Marshall IslandsSeaspan Corporation
108Seaspan Containership H1564 Ltd.Republic of Marshall IslandsSeaspan Corporation
109Seaspan Containership H1565 Ltd.Republic of Marshall IslandsSeaspan Corporation
110Seaspan Containership H1566 Ltd.Republic of Marshall IslandsSeaspan Corporation
111Seaspan Containership H1567 Ltd.Republic of Marshall IslandsSeaspan Corporation
112Seaspan Containership H1568 Ltd.Republic of Marshall IslandsSeaspan Corporation
113Seaspan Containership H1569 Ltd.Republic of Marshall IslandsSeaspan Corporation
114Seaspan Containership H1570 Ltd.Republic of Marshall IslandsSeaspan Corporation
115Seaspan Containership H1571 Ltd.Republic of Marshall IslandsSeaspan Corporation
116Seaspan Containership VII Ltd.Republic of Marshall IslandsSeaspan Corporation
117Seaspan Containership VIII Ltd.Republic of Marshall IslandsSeaspan Corporation
118Seaspan Containership IX Ltd.Republic of Marshall IslandsSeaspan Corporation
119Seaspan 696C Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
120Seaspan 716C Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
121Seaspan 717C Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
122Seaspan 718C Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
123Seaspan 719C Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
124Seaspan 720C Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
125Seaspan 721C Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
126Seaspan 722C Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
127Seaspan 993 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
128Seaspan 1105 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
129Seaspan 1539 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
130Seaspan 1540 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
131Seaspan 1541 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
132Seaspan 1542 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
133Seaspan 1543 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
134Seaspan 1550 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
135Seaspan 1551 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
136Seaspan 1552 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%



COMPANY NAMEINCORPORATION JURISDICTIONOWNERSHIP
137Seaspan 1566 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
138Seaspan 1568 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
139Seaspan 1854 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
140Seaspan 1855 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
141Seaspan 2177 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
142Seaspan 2638 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
143Seaspan 2640 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
144Seaspan 2180 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
145Seaspan 2181 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
146Seaspan 3278 Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
147Greater China Intermodal Investments LLCRepublic of Marshall IslandsSeaspan Investment I Ltd.
148GC Intermodal Holding Company I, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
149GC Intermodal Intermediate Holding Company I, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company I, Ltd.
150GC Intermodal I, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
151GC Intermodal Holding Company II, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
152GC Intermodal Intermediate Holding Company II, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company II, Ltd.
153GC Intermodal II, Ltd.Republic of Marshall IslandsGC Intermodal Intermediate Holding Company II, Ltd.
154GC Intermodal Holding Company III, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
155GC Intermodal Intermediate Holding Company III, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company III, Ltd.
156GC Intermodal III, Ltd.Republic of Marshall IslandsGC Intermodal Intermediate Holding Company III, Ltd.
157GC Intermodal Holding Company IV, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
158GC Intermodal Intermediate Holding Company IV, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company IV, Ltd.
159GC Intermodal IV, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
160GC Intermodal Holding Company V, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
161GC Intermodal Intermediate Holding Company V, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company V, Ltd.
162GC Intermodal V, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
163GC Intermodal Holding Company VI, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
164GC Intermodal Intermediate Holding Company VI, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company VI, Ltd.
165GC Intermodal VI, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
166GC Intermodal Holding Company IX, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
167GC Intermodal Intermediate Holding Company IX, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company IX, Ltd.
168GC Intermodal IX, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
169GC Intermodal Holding Company X, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
170GC Intermodal Intermediate Holding Company X, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company X, Ltd.
171GC Intermodal X, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
172GC Intermodal Holding Company XI, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
173GC Intermodal Intermediate Holding Company XI, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XI, Ltd.
174GC Intermodal XI, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
175GC Intermodal Holding Company XII, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC



COMPANY NAMEINCORPORATION JURISDICTIONOWNERSHIP
176GC Intermodal Intermediate Holding Company XII, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XII, Ltd.
177GC Intermodal XII, Ltd.Republic of Marshall IslandsGC Intermodal Intermediate Holding Company XII, Ltd.
178GC Intermodal Holding Company XIV, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
179GC Intermodal Intermediate Holding Company XIV, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XIV, Ltd.
180GC Intermodal XIV, Ltd.Republic of Marshall IslandsGC Intermodal Intermediate Holding Company XIV, Ltd.
181GC Intermodal Holding Company XV, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
182GC Intermodal Intermediate Holding Company XV, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XV, Ltd.
183GC Intermodal XV, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
184GC Intermodal Holding Company XVI, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
185GC Intermodal Intermediate Holding Company XVI, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XVI, Ltd.
186GC Intermodal XVI, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
187GC Intermodal Holding Company XVII, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
188GC Intermodal Intermediate Holding Company XVII, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XVII, Ltd.
189GC Intermodal XVII, Ltd.Republic of Marshall IslandsGC Intermodal Intermediate Holding Company XVII, Ltd.
190GC Intermodal Holding Company XIX, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
191GC Intermodal Intermediate Holding Company XIX, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XIX, Ltd.
192GC Intermodal XIX, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
193GC Intermodal Holding Company XX, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
194GC Intermodal Intermediate Holding Company XX, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XX, Ltd.
195GC Intermodal XX, Ltd.Republic of Marshall IslandsSeaspan Holdco III owns 100%
196GC Intermodal Holding Company XXI, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
197GC Intermodal Intermediate Holding Company XXI, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XXI, Ltd.
198GC Intermodal XXI, Ltd.Republic of Marshall IslandsGC Intermodal Intermediate Holding Company XXI, Ltd.
199GC Intermodal Holding Company XXIV, Ltd.Republic of Marshall IslandsGreater China Intermodal Investments LLC
200GC Intermodal Intermediate Holding Company XXIV, Ltd.Republic of Marshall IslandsGC Intermodal Holding Company XXIV, Ltd.
201GC Intermodal XXIV, Ltd.Republic of Marshall IslandsGC Intermodal Intermediate Holding Company XXIV, Ltd.
202GC Intermodal Operating CompanyRepublic of Marshall IslandsGreater China Intermodal Investments LLC
203GC Intermodal Operating (HK) LimitedHong KongGC Intermodal Operating Company
204Apple Bidco LimitedEnglandAtlas Corp. owns 100%
205APR Energy LimitedEnglandApple Bidco Limited owns 100%
206APR Energy Holdings LimitedEnglandAPR Energy Limited owns 100%
207APR Energy, USAFloridaAPR International, LLC owns 100%
208APR Energy Australia Pty. Ltd.New South WalesAPR Energy Holdings Limited owns 100%
209Power Rental Asset Co LLCFloridaAPR Energy Holdings Limited owns 100%
210Power Rental Asset Co Two LLCDelawarePower Rental Asset Co LLC owns 100%
211Power Rental Op Co Australia LLCDelawarePower Rental Asset Co LLC owns 100%
212Power Rental Op Co LLCFloridaAPR Energy Holdings Limited owns 100%
213APR Energy (Singapore) Private LimitedSingaporeAPR Energy Holdings Limited owns 100%



COMPANY NAMEINCORPORATION JURISDICTIONOWNERSHIP
214APR International, LLCFloridaAPR Energy Holdings Limited owns 100%
215APR Energy FZE(Dubai) JafzaAPR International, LLC owns 100%
216APR Energy Bangladesh LimitedBangladesh (Dhaka)APR Energy Holdings Limited owns 99%, and APR International, LLC owns 1%
217APR Energy Spain S.L.U.MadridAPR Energy Holdings Limited owns 100%
218Falconbridge Services, LLCFloridaAPR International, LLC 100%
219APR Energy, LLCFloridaAPR International, LLC owns 100%
220APR Energy II LLCFloridaAPR International, LLC owns 100%
221APR Energy SRLBuenos AiresAPR Energy, LLC owns 99.6% and
APR Energy II LLC owns .04%
222APR Energy Guatemala S.A.Guatemala CityAPR Energy, LLC owns 50% and
APR International, LLC owns 50%
223PT APR IndonesiaJakartaAPR Energy, LLC owns .95%;
APR International owns 94.05%; and PT Karya Cemerlang Semanan owns 5%
224APR Energy MEX S. de R.L. de C.V.MexicoAPR Energy, LLC owns 99%; and APR International, LLC owns 1%
225Power Rental Op Puerto Rico LLCPuerto RicoAPR Energy Holdings owns 100%
226APR Energy B.V.Amsterdam, the NetherlandsAPR Energy Holdings owns 100%